EXHIBIT 10.13



                 ______________________________________________


                               WARRANT AGREEMENT


                           Dated as of April 15, 1996


                                  by and among


                       HYPERION TELECOMMUNICATIONS, INC.

                                      and

                         Bank of Montreal Trust Company


                 ______________________________________________





===============================================================================

 
                              WARRANT AGREEMENT
                              TABLE OF CONTENTS*



                                                                                                                              Page
                                                                                                                              ----
                                                                                                                        
 
SECTION 1.   Certain Definitions...........................................................................................       1
             ------------------

SECTION 2.   Appointment of Warrant Agent..................................................................................       3
             ----------------------------

SECTION 3.   Issuance of Warrants; Warrant Certificates....................................................................       3
             ------------------------------------------

SECTION 4.   Execution of Warrant Certificates.............................................................................       3
             ---------------------------------

SECTION 5.   Separation of Warrants........................................................................................       3
             ----------------------

SECTION 6.   Registration and Countersignature.............................................................................       4
             ---------------------------------

SECTION 7.   Registration of Transfers and Exchanges.......................................................................       4
             ---------------------------------------
     (a)       Transfer and Exchange of Definitive Warrants................................................................       4
               --------------------------------------------
     (b)       Restrictions on Exchange or Transfer of a Definitive Warrant for a Beneficial
               -----------------------------------------------------------------------------
               Interest in a Global Warrant................................................................................       5
               ----------------------------
     (c)       Transfer and Exchange of Global Warrants....................................................................       6
               ----------------------------------------
     (d)       Exchange of a Beneficial Interest in a Global Warrant for a Definitive Warrant..............................       6
               ------------------------------------------------------------------------------
     (e)       Restrictions on Transfer and Exchange of Global Warrants....................................................       7
               --------------------------------------------------------
     (f)       Countersigning of Definitive Warrants in Absence of Depositary..............................................       7
               --------------------------------------------------------------
     (g)       Legends.....................................................................................................       7
               -------
     (h)       Cancellation of Global Warrant..............................................................................       9
               ------------------------------
     (i)       Obligations with respect to Transfers and Exchanges of Warrants.............................................       9
               ---------------------------------------------------------------
 
SECTION 8.   Terms of Warrants; Exercise of Warrants.......................................................................       9
             ---------------------------------------
 
SECTION 9.   Payment of Taxes..............................................................................................      11
             ----------------
 
SECTION 10.  Mutilated or Missing Warrant Certificates.....................................................................      11
             -----------------------------------------

SECTION 11.  Reservation of Warrant Shares ................................................................................      11
             -----------------------------

SECTION 12.  Obtaining Stock Exchange Listings.............................................................................      12
             ---------------------------------

SECTION 13.  Adjustment of Exercise Price and Number of Warrant Shares Issuable............................................      12
             ------------------------------------------------------------------

     (a)       Stock Splits, Combinations, etc.............................................................................      12
               --------------------------------
     (b)       Reclassification, Combinations, Mergers, etc................................................................      12
               ---------------------------------------------
     (c)       Issuance of Options or Convertible Securities...............................................................      13
               ---------------------------------------------

________________
* This Table of Contents does not constitute a part of this Agreement or have
  any bearing upon the interpretation of any of its terms or provisions.
 

 


                                                                                                                              Page
                                                                                                                              ----
                                                                                                                        
     (d)       Dividends and Distributions.................................................................................      14
               ---------------------------
     (e)       Current Market Price........................................................................................      14
               --------------------
     (f)       Certain Distributions.......................................................................................      15
               ---------------------
     (g)       Consideration Received......................................................................................      15
               ----------------------
     (h)       Deferral of Certain Adjustments ............................................................................      15
               -------------------------------
     (i)       Changes in Options and Convertible Securities...............................................................      15
               ---------------------------------------------
     (j)       Expiration of Options and Convertible Securities............................................................      16
               ------------------------------------------------
     (k)       Other Adjustments...........................................................................................      16
               -----------------
     (l)       Adjustment in Number of Shares..............................................................................      16
               ------------------------------
 
SECTION 14.  Statement on Warrants.........................................................................................      17
             ---------------------
 
SECTION 15.  Fractional Interest...........................................................................................      17
             -------------------
 
SECTION 16.  Notices to Warrant Holders....................................................................................      17
             --------------------------
 
SECTION 17.  Merger, Consolidation or Change of Name of Warrant Agent......................................................      19
             --------------------------------------------------------
 
SECTION 18.  Warrant Agent.................................................................................................      19
             -------------
 
SECTION 19.  Resignation and Removal of Warrant Agent; Appointment of Successor............................................      21
             ------------------------------------------------------------------

SECTION 20.  Registration..................................................................................................      21
             ------------
 
SECTION 21.  Reports.......................................................................................................      21
             -------
 
SECTION 22.  Rule 144A.....................................................................................................      22
             ---------
 
SECTION 23.  Notices to Company and Warrant Agent..........................................................................      22
             ------------------------------------
 
SECTION 24.  Supplements and Amendments....................................................................................      23
             --------------------------
 
SECTION 25.  Successors....................................................................................................      23
             ----------
 
SECTION 26.  Termination...................................................................................................      23
             -----------
 
SECTION 27.  Governing Law.................................................................................................      23
             -------------
 
SECTION 28.  Benefits of This Agreement....................................................................................      23
             --------------------------
 
SECTION 29.  Counterparts..................................................................................................      24
             ------------
 
Signature..................................................................................................................      24
 
Seal.......................................................................................................................      25
 
EXHIBIT A..................................................................................................................       1

 
                                      ii

 


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EXHIBIT B..................................................................................................................       1



 
            WARRANT AGREEMENT dated as of April 15, 1996 (the "Agreement")
  between Hyperion Telecommunications, Inc., a Delaware corporation (the
  "Company"), and Bank of Montreal Trust Company, as warrant agent (the "Warrant
  Agent").

            WHEREAS, the Company proposes to issue Common Stock Purchase
  Warrants, as hereinafter described (the "Warrants"), to purchase up to an
  aggregate of 613,427 shares of Common Stock (as defined below), in connection
  with the offering of an aggregate of $329,000,000 principal amount at maturity
  of the Company's 13% Senior Discount Notes due 2003 (the "Senior Notes") and
  329,000 Warrants, each Warrant entitling the holder thereof to purchase 1.8645
  shares of Common Stock.  The Senior Notes and Warrants will be sold in Units
  (the "Units"), each Unit consisting of $1,000 principal amount at maturity of
  Senior Notes and one Warrant.

            WHEREAS, the Company desires the Warrant Agent to act on behalf of
  the Company, and the Warrant Agent is willing so to act, in connection with
  the issuance of Warrant Certificates (as defined below) and other matters as
  provided herein.

            NOW, THEREFORE, in consideration of the premises and the mutual
  agreements herein set forth, and for the purpose of defining the respective
  rights and obligations of the Company, the Warrant Agent and the Holders (as
  defined below), the parties hereto agree as follows:

            SECTION 1.  Certain Definitions.  As used in this Agreement, the
                        -------------------                                 
  following terms shall have the following respective meanings:

            "Affiliate" of any person means any person directly or indirectly
             ---------                                                       
  controlling or controlled by or under direct or indirect common control with
  such person.  For purposes of this definition, "control" (including, with
  correlative meanings, the terms "controlling", "controlled by" and "under
  common control with"), as used with respect to any person means the
  possession, directly or indirectly, of the power to direct or cause the
  direction of the management or policies of such person, directly or
  indirectly, whether through the ownership of voting securities, by contract or
  otherwise; provided that beneficial ownership of 10% or more of the voting
  securities of a person shall be deemed to be control.

            "Commission" means the Securities and Exchange Commission.
             ----------                                               

            "Common Equity Securities" means Common Stock and securities
             ------------------------                                   
  convertible into, or exercisable or exchangeable for, Common Stock or rights
  or options to acquire Common Stock or such other securities, excluding the
  Warrants.

            "Common Stock" means the common stock, par value $.01 per share, of
             ------------                                                      
  the Company, and any other capital stock of the Company into which such common
  stock may be converted or reclassified or that may be issued in respect of, in
  exchange for, or in substitution for, such common stock by reason of any stock
  splits, stock dividends, distributions, mergers, consolidations or other like
  events.

            "Company" means Hyperion Telecommunications, Inc., a Delaware
             -------                                                     
  corporation, and its successors and assigns.

 
            "Exchange Act" means the Securities Exchange Act of 1934, as
             ------------                                               
  amended.

            "Exercisability Date" means any time on or after the earlier to
             -------------------                                           
  occur of (i) May 1, 1997 and (ii) in the event a Change of Control (as defined
  in the Indenture) occurs, the date the Company mails notice thereof to holders
  of Senior Notes and to the Holders.

            "Exercise Price" means the purchase price per share of Common Stock
             --------------                                                    
  to be paid upon the exercise of each Warrant in accordance with the terms
  hereof, which price shall initially be $0.01 per share, subject to adjustment
  from time to time pursuant to Section 13 hereof.

            "Expiration Date" means April 1, 2001.
             ---------------                      

            "Holder" means a person who owns Registrable Securities (as defined
             ------                                                            
  in Section 7).

            "Indenture" means the indenture, dated the date hereof, between the
             ---------                                                         
  Company and Bank of Montreal Trust Company, as trustee.

            "Initial Purchasers" means Bear, Stearns & Co. Inc., Chase
             ------------------                                       
  Securities Inc. and NationsBanc Capital Markets, Inc.

            "person" means any individual, corporation, partnership, joint
             ------                                                       
  venture, association, joint-stock company, trust, unincorporated organization
  or government or any agency or political subdivision thereof.

            "Registration Rights Agreement" means the registration rights
             -----------------------------                               
  agreement, dated as of April 15, 1996, by and among the Company and the
  Initial Purchasers relating to the Senior Notes.

            "Securities Act" means the Securities Act of 1933, as amended.
             --------------                                               

            "Senior Notes" means the 13% Series A Senior Discount Notes due 2003
             ------------                                                       
  of the Company, being sold and issued pursuant to the Purchase Agreement and
  the Indenture, or any notes exchanged therefor as contemplated by the
  Indenture and the Registration Rights Agreement.

            "Separation Date" means the earlier of (i) 90 days after the
             ---------------                                            
  issuance of the Units, (ii) such date as the Initial Purchasers may, in their
  discretion, deem appropriate for the Senior Notes and the Warrants that
  comprise each Unit to be transferred or exchanged separately, (iii) in the
  event a Change of Control (as defined in the Indenture) occurs, the date the
  Company mails notice thereof to holders of Senior Notes and (iv) the date on
  which the Exchange Offer (as defined in the Registration Rights Agreement) is
  consummated.

            "Trustee" means the trustee under the Indenture.
             -------                                        

            "Warrant Agent" means Bank of Montreal Trust Company or the
             -------------                                             
  successor or successors of such Warrant Agent appointed in accordance with the
  terms hereof.

                                       2


 
            "Warrant Registration Rights Agreement" means the registration
             -------------------------------------                        
  rights agreement, dated as of April 15, 1996, by and among the Company and the
  Initial Purchasers relating to the Warrants and the Warrant Shares.

            "Warrant Shares" means the shares of Common Stock issued or issuable
             --------------                                                     
  upon the exercise of the Warrants.

            SECTION 2.  Appointment of Warrant Agent.  The Company hereby
                        ----------------------------                     
  appoints the Warrant Agent to act as agent for the Company in accordance with
  the instructions set forth hereinafter in this Agreement, and the Warrant
  Agent hereby accepts such appointment.

            SECTION 3.  Issuance of Warrants; Warrant Certificates.  The
                        ------------------------------------------      
  Warrants will be issued in global form (the "Global Warrants"), substantially
  in the form of Exhibit A (including footnotes 1 and 2 thereto) and in
  definitive form (the "Definitive Warrants"), substantially in the form of
  Exhibit A.  Each Global Warrant shall represent such of the outstanding
  Warrants as shall be specified therein and each shall provide that it shall
  represent the aggregate amount of outstanding Warrants from time to time
  endorsed thereon and that the aggregate amount of outstanding Warrants
  represented thereby may from time to time be reduced or increased, as
  appropriate.  Any endorsement of a Global Warrant to reflect the amount of any
  increase or decrease in the amount of outstanding Warrants represented thereby
  shall be made by the Warrant Agent and the depositary with respect to the
  Global Warrants (the "Depositary") in accordance with instructions given by
  the Holder thereof.  The Depository Trust Company shall act as the Depositary
  until a successor shall be appointed by the Company and the Warrant Agent.
  Upon request, a Holder may receive from the Depositary and the Warrant Agent
  separate Definitive Warrants as set forth in Section 7 below.  Any
  certificates (the "Warrant Certificates") evidencing the Global Warrants or
  the Definitive Warrants to be delivered pursuant to this Agreement shall be
  substantially in the form set forth in Exhibit A attached hereto.

            SECTION 4.  Execution of Warrant Certificates.  Warrant Certificates
                        ---------------------------------                       
  shall be signed on behalf of the Company by its Chairman of the Board, its
  President or a Vice President and by its Secretary or Assistant Secretary
  under its corporate seal.  Each such signature upon the Warrant Certificates
  may be in the form of a facsimile signature of the present or any future
  Chairman of the Board, President or Secretary and may be imprinted or
  otherwise reproduced on the Warrant Certificates and for that purpose the
  Company may adopt and use the facsimile signature of any person who shall have
  been Chairman of the Board, President or Secretary notwithstanding the fact
  that at the time the Warrant Certificates shall be countersigned and delivered
  or disposed of such person shall have ceased to hold such office.  The seal of
  the Company may be in the form of a facsimile thereof and may be impressed,
  affixed, imprinted or otherwise reproduced on the Warrant Certificates.

            In case any officer of the Company who shall have signed any of the
  Warrant Certificates shall cease to be such officer before the Warrant
  Certificates so signed shall have been countersigned by the Warrant Agent, or
  disposed of by the Company, such Warrant Certificates nevertheless may be
  countersigned and delivered or disposed of as though such person had not
  ceased to be such officer of the Company; and any Warrant Certificate may be
  signed on behalf of the Company by any person who, at the actual date of the
  execution of such Warrant Certificate, shall be a proper officer of the
  Company to sign such Warrant Certificate, although at the date of the
  execution of this Warrant Agreement any such person was not such officer.


                                       3

 
            Warrant Certificates shall be dated the date of countersignature.

            SECTION 5.  Separation of Warrants. The Senior Notes and Warrants
                        ----------------------                               
  shall not be separately transferable prior to the Separation Date.

            SECTION 6.  Registration and Countersignature. The Warrant Agent, on
                        ---------------------------------                       
  behalf of the Company, shall number and register the Warrant Certificates in a
  register as they are issued by the Company.

            Warrant Certificates shall be manually countersigned by the Warrant
  Agent and shall not be valid for any purpose unless so countersigned.  The
  Warrant Agent shall, upon written instructions of the Chairman of the Board,
  the President or the Treasurer of the Company, initially countersign, issue
  and deliver Warrants entitling the Holders thereof to purchase not more than
  the number of Warrant Shares referred to above in the first recital hereof and
  shall countersign and deliver Warrants as otherwise provided in this
  Agreement.

            The Company and the Warrant Agent may deem and treat the Holder(s)
  of the Warrant Certificates as the absolute owner(s) thereof (notwithstanding
  any notation of ownership or other writing thereon made by anyone), for all
  purposes, and neither the Company nor the Warrant Agent shall be affected by
  any notice to the contrary.  Prior to a Separation Date, the registered holder
  of the Unit shall be deemed the registered Holder of such Warrants for all
  purposes hereunder.

             SECTION 7.  Registration of Transfers and Exchanges.
                         --------------------------------------- 

             (a) Transfer and Exchange of Definitive Warrants.  When Definitive
                 --------------------------------------------                  
  Warrants are presented to the Warrant Agent with a request:

        (i)  to register the transfer of the Definitive Warrants; or

        (ii) to exchange such Definitive Warrants for an equal number of 
             Definitive Warrants of other authorized denominations,

  the Warrant Agent shall register the transfer or make the exchange as
  requested if its requirements for such transactions are met; provided that the
  Definitive Warrants presented or surrendered for registration of transfer or
  exchange:

        (x)  shall be duly endorsed or accompanied by a written instruction of 
             transfer in form satisfactory to the Warrant Agent, duly executed
             by the Holder thereof or by his attorney, duly authorized in 
             writing; and

        (y)  in the case of Registrable Securities (as defined below), such 
             request shall be accompanied by the following additional
             information and  documents, as applicable:

             (A) if such Registrable Security is being delivered to the Warrant
                 Agent by a Holder for registration in the name of such Holder,
                 without transfer, a certification from such Holder to that
                 effect (in substantially the form of Exhibit B hereto);

                                      4

 
             (B) if such Registrable Security is being transferred (1) to a
                 "qualified institutional buyer" (as defined in Rule 144A under
                 the Securities Act) in accordance with Rule 144A under the
                 Securities Act or (2) pursuant to an exemption from
                 registration in accordance with Rule 144 under the Securities
                 Act (and based on an opinion of counsel if the Company so
                 requests) or (3) pursuant to an effective registration
                 statement under the Securities Act, a certification to that
                 effect (in substantially the form of Exhibit B hereto);

             (C) if such Registrable Security is being transferred to an
                 institutional "accredited investor," within the meaning of
                 Rule 501(a)(1), (2), (3) or (7) under the Securities Act
                 pursuant to a private placement exemption from the
                 registration requirements of the Securities Act (and based on
                 an opinion of counsel if the Company so requests), a
                 certification to that effect (in substantially the form of
                 Exhibit B hereto) and a certification from the applicable
                 transferee; or

             (D) if such Registrable Security is being transferred in reliance 
                 on another exemption from the registration requirements of the
                 Securities Act (and based on an opinion of counsel if the
                 Company so requests), a certification to that effect (in
                 substantially the form of Exhibit B hereto).

            The term "Registrable Securities" means the Warrants, Warrant Shares
     and any other securities issued or issuable with respect to the Warrants
     or the Warrant Shares by way of a stock dividend or stock split or in
     connection with a combination of shares, recapitalization, merger,
     consolidation or other reorganization or otherwise until such date as such
     security (i) is effectively registered under the Securities Act and
     disposed of in accordance with a registration statement or (ii) is
     distributed to the public pursuant to Rule 144 under the Securities Act.

             (b) Restrictions on Exchange or Transfer of a Definitive Warrant 
                 ------------------------------------------------------------
  for a Beneficial Interest in a Global Warrant.  A Definitive Warrant may not
  ---------------------------------------------
  be exchanged for a beneficial interest in a Global Warrant except upon
  satisfaction of the requirements set forth below.  Upon receipt by the Warrant
  Agent of a Definitive Warrant, duly endorsed or accompanied by appropriate
  instruments of transfer, in form satisfactory to the Warrant Agent, together
  with:

             (A) if such Definitive Warrant is a Registrable Security, 
                 certification from the Holder thereof (in substantially the
                 form of Exhibit B hereto) to the effect that such Definitive
                 Warrant is being transferred by such Holder either (i) to a
                 "qualified institutional buyer" (as defined in Rule 144A under
                 the Securities Act) in accordance with Rule 144A under the
                 Securities Act who wishes to take delivery thereof in the form
                 of a beneficial interest in a Global Warrant or (ii) to an
                 "accredited investor," within the meaning of Rule 501(a)(1),
                 (2), (3) or (7) in accordance with Rule 144A under the
                 Securities Act (and based on an opinion of counsel if the
                 Company so requests) who wishes to take delivery thereof in
                 the form of a beneficial interest in a Global Warrant; and

             (B) whether or not such Definitive Warrant is a Registrable 
                 Security, written instructions directing the Warrant Agent to
                 make, or to direct the Depositary to

                                      5

 
                 make, an endorsement on the Global Warrant to reflect an
                 increase in the number of Warrants and Warrant Shares
                 represented by the Global Warrant,

  then the Warrant Agent shall cancel such Definitive Warrant and cause, or
  direct the Depositary to cause, in accordance with the standing instructions
  and procedures existing between the Depositary and the Warrant Agent, the
  number of Warrants and Warrant Shares represented by the Global Warrant to be
  increased accordingly.  If no Global Warrants are then outstanding, the
  Company shall issue and the Warrant Agent shall countersign a new Global
  Warrant representing the appropriate number of Warrants and Warrant Shares.

             (c) Transfer and Exchange of Global Warrants.  The transfer and
                 ----------------------------------------                   
  exchange of Global Warrants or beneficial interests therein shall be effected
  through the Depositary, in accordance with this Warrant Agreement and the
  procedures of the Depositary therefor.

             (d) Exchange of a Beneficial Interest in a Global Warrant for a
                 -----------------------------------------------------------
  Definitive Warrant.
  ------------------ 

        (i)  Any person having a beneficial interest in a Global Warrant may 
             upon request exchange such beneficial interest for a Definitive
             Warrant.  Upon receipt by the Warrant Agent of written
             instructions or such other form of instructions as is customary
             for the Depositary from the Depositary or its nominee on behalf of
             any person having a beneficial interest in a Global Warrant and,
             in the case of a Registrable Security, the following additional
             information and documents (all of which may be submitted by
             facsimile):

             (A) if such beneficial interest is being delivered to the person 
                 designated by the Depositary as being the beneficial owner, a
                 certification to that effect (in substantially the form of
                 Exhibit B hereto);

             (B) if such beneficial interest is being transferred (1) to a 
                 "qualified institutional buyer" (as defined in Rule 144A under
                 the Securities Act) in accordance with Rule 144A under the
                 Securities Act or (2) pursuant to an exemption from
                 registration in accordance with Rule 144 under the Securities
                 Act (and based on an opinion of counsel if the Company so
                 requests) or (3) pursuant to an effective registration
                 statement under the Securities Act, a certification to that
                 effect (in substantially the form of Exhibit B hereto);

             (C) if such beneficial interest is being transferred to any
                 institutional "accredited investor," within the meaning of
                 Rule 501(a)(1), (2), (3) and (7) under the Securities Act
                 pursuant to a private placement exemption from the
                 registration requirements of the Securities Act (and based on
                 an opinion of counsel if the Company so requests), a
                 certification to that effect (in substantially the form of
                 Exhibit B hereto) and a certification from the applicable
                 transferee;

             (D) if such beneficial interest is being transferred in reliance on
                 another exemption from the registration requirements of the
                 Securities Act (and based on an opinion of counsel if the
                 Company so requests), a certification to that effect (in
                 substantially the form of Exhibit B hereto).

                                      6

 
             then the Warrant Agent shall cause, in accordance with the
             standing instructions and procedures existing between the
             Depositary and Warrant Agent, the number of Warrants and Warrant
             Shares represented by the Global Warrant to be reduced and,
             following such reduction, the Company shall execute and the
             Warrant Agent shall countersign and deliver to the transferee, as
             the case may be, a Definitive Warrant.

        (ii) Definitive Warrants issued in exchange for a beneficial interest 
             in a Global Warrant pursuant to this Section 7(d) shall be
             registered in such names as the Depositary, pursuant to
             instructions from its direct or indirect participants or
             otherwise, shall instruct the Warrant Agent.  The Warrant Agent
             shall deliver such Definitive Warrants to the persons in whose
             names such Warrants are so registered.

             (e) Restrictions on Transfer and Exchange of Global Warrants.
                 --------------------------------------------------------  
  Notwithstanding any other provisions of this Warrant Agreement (other than the
  provisions set forth in subsection (f) of this Section 7), a Global Warrant
  may not be transferred as a whole except by the Depositary to a nominee of the
  Depositary or by a nominee of the Depositary to the Depositary or another
  nominee of the Depositary or by the Depositary or any such nominee to a
  successor Depositary or a nominee of such successor Depositary.

             (f) Countersigning of Definitive Warrants in Absence of Depositary.
                 --------------------------------------------------------------
  If at any time:

        (i)  the Depositary for the Global Warrants notifies the Company that 
             the Depositary is unwilling or unable to continue as Depositary
             for the Global Warrants and a successor Depositary for the Global
             Warrants is not appointed by the Company within 90 days after
             delivery of such notice; or

        (ii) The Company, in its sole discretion, notifies the Warrant Agent in
             writing that it elects to cause the issuance of Definitive
             Warrants under this Warrant Agreement,

  then the Company shall execute, and the Warrant Agent, upon written
  instructions signed by two officers of the Company, shall countersign and
  deliver Definitive Warrants, in an aggregate number equal to the number of
  Warrants represented by Global Warrants, in exchange for such Global Warrants.

             (g) Legends.
                 ------- 

        (i)  Except for any Registrable Security sold or transferred (including
             any Registrable Security represented by a Global Warrant) as
             discussed in clause (ii) below, each Warrant Certificate
             evidencing the Global Warrants and the Definitive Warrants (and
             all Warrants issued in exchange therefor or substitution thereof)
             and each certificate representing the Warrant Shares shall bear a
             legend in substantially the following form:

                 "THE SECURITY (OR ITS PREDECESSOR) EVIDENCED HEREBY WAS 
                 ORIGINALLY ISSUED IN A TRANSACTION EXEMPT FROM REGISTRATION
                 UNDER SECTION 5 OF THE UNITED STATES SECURITIES ACT OF 1933,
                 AS AMENDED (THE "SECURITIES ACT"),

                                      7

 
                 AND THE SECURITY EVIDENCED HEREBY MAY NOT BE OFFERED, SOLD OR
                 OTHERWISE TRANSFERRED IN THE ABSENCE OF SUCH REGISTRATION OR
                 AN APPLICABLE EXEMPTION THEREFROM. EACH PURCHASER OF THE
                 SECURITY EVIDENCED HEREBY IS HEREBY NOTIFIED THAT THE SELLER
                 MAY BE RELYING ON THE EXEMPTION FROM THE PROVISIONS OF SECTION
                 5 OF THE SECURITIES ACT PROVIDED BY RULE 144A THEREUNDER.  BY
                 ITS ACQUISITION HEREOF, THE HOLDER (1) REPRESENTS THAT (A) IT
                 IS A "QUALIFIED INSTITUTIONAL BUYER" (AS DEFINED IN RULE 144A
                 UNDER THE SECURITIES ACT) OR (B) IT IS AN INSTITUTIONAL
                 "ACCREDITED INVESTOR" (AS DEFINED IN RULE 501(A)(1), (2), (3)
                 OR (7) UNDER THE SECURITIES ACT) (AN "INSTITUTIONAL ACCREDITED
                 INVESTOR").  THE HOLDER OF THE SECURITY EVIDENCED HEREBY
                 AGREES FOR THE BENEFIT OF THE COMPANY THAT (Y) SUCH SECURITY
                 MAY BE RESOLD, PLEDGED OR OTHERWISE TRANSFERRED, ONLY (1)(a)
                 TO A PERSON WHO THE SELLER REASONABLY BELIEVES IS A QUALIFIED
                 INSTITUTIONAL BUYER (AS DEFINED IN RULE 144A UNDER THE
                 SECURITIES ACT), IN A TRANSACTION MEETING THE REQUIREMENTS OF
                 RULE 144A, (b) IN A TRANSACTION MEETING THE REQUIREMENTS OF
                 RULE 144 UNDER THE SECURITIES ACT, (c) IN ACCORDANCE WITH
                 ANOTHER EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE
                 SECURITIES ACT (AND BASED UPON AN OPINION OF COUNSEL IF THE
                 COMPANY SO REQUESTS), (2) TO THE COMPANY, (3) PURSUANT TO AN
                 EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT AND,
                 IN EACH CASE, IN ACCORDANCE WITH ANY APPLICABLE SECURITIES
                 LAWS OF ANY STATE OF THE UNITED STATES OR ANY OTHER APPLICABLE
                 JURISDICTION AND (Z) IT WILL NOTIFY ANY PURCHASER OF THE
                 SECURITY EVIDENCED HEREBY, PRIOR TO CLOSING OF ANY SALE, OF
                 THE RESALE RESTRICTIONS SET FORTH IN (Y) ABOVE."

        (ii) Upon any sale or transfer of a Registrable Security (including any
             Registrable Security represented by a Global Warrant) pursuant to
             an effective registration statement under the Securities Act,
             pursuant to Rule 144 under the Securities Act or pursuant to an
             opinion of counsel reasonably satisfactory to the Company that no
             legend is required:

             (A) in the case of any Registrable Security that is a Definitive 
                 Warrant, the Warrant Agent shall permit the Holder thereof to
                 exchange such Registrable Security for a Definitive Warrant
                 that does not bear the legend set forth in clause (i) above
                 and rescind any restriction on the transfer of such
                 Registrable Security; and

             (B) in the case of any Registrable Security represented by a 
                 Global Warrant, such Registrable Security shall not be
                 required to bear the legend set forth in clause (i) above but
                 shall continue to be subject to the provisions of Section 7(c)
                 hereof; provided that with respect to any request for an
                 exchange of a

                                      8

 
                 Registrable Security that is represented by a Global Warrant
                 for a Definitive Warrant that does not bear the legend set
                 forth in clause (i) above, which request is made in reliance
                 upon Rule 144 (and based on an opinion of counsel if the
                 Company so requests), the Holder thereof shall certify in
                 writing to the Warrant Agent that such request is being made
                 pursuant to Rule 144 (such certification to be substantially
                 in the form of Exhibit B hereto).

             (h) Cancellation of Global Warrant.  At such time as all beneficial
                 ------------------------------                                 
  interests in Global Warrants have either been exchanged for Definitive
  Warrants, redeemed, repurchased or cancelled, all Global Warrants shall be
  returned to or retained and cancelled by the Warrant Agent.

             (i) Obligations with respect to Transfers and Exchanges of 
                 ------------------------------------------------------
                 Warrants.
                 -------- 

        (i)   To permit registrations of transfers and exchanges, the Company 
              shall execute and the Warrant Agent is hereby authorized to
              countersign, in accordance with the provisions of Section 6 and
              this Section 7, Definitive Warrants and Global Warrants as
              required pursuant to the provisions of this Section 7.

        (ii)  All Definitive Warrants and Global Warrants issued upon any 
              registration of transfer or exchange of Definitive Warrants or
              Global Warrants shall be the valid obligations of the Company,
              entitled to the same benefits under this Warrant Agreement, as the
              Definitive Warrants or Global Warrants surrendered upon such
              registration of transfer or exchange.

        (iii) Prior to due presentment for registration of transfer of any 
              Warrant, the Warrant Agent and the Company may deem and treat the
              person in whose name any Warrant is registered as the absolute
              owner of such Warrant and neither the Warrant Agent, nor the
              Company shall be affected by notice to the contrary.

        (iv)  No service charge shall be made to a Holder for any registration,
              transfer or exchange.


             SECTION 8.  Terms of Warrants; Exercise of Warrants.  Subject to 
                         ---------------------------------------
  the terms of this Agreement, each Warrant Holder shall have the right, which
  may be exercised commencing at the opening of business on the Exercisability
  Date and until 5:00 p.m., New York City time on the Expiration Date to
  receive from the Company the number of fully paid and nonassessable Warrant
  Shares registered under the Securities Act which the Holder may at the time
  be entitled to receive on exercise of such Warrants and payment of the
  Exercise Price then in effect for such Warrant Shares; provided that no
  Warrant Holder shall be entitled to exercise such Holder's Warrants at any
  time, unless, at the time of exercise, (i) a registration statement under the
  Securities Act relating to the Warrant Shares has been filed with, and
  declared effective by, the Commission, and no stop order suspending the
  effectiveness of such registration statement has been issued by the
  Commission or (ii) the issuance of the Warrant Shares is permitted pursuant
  to an exemption from the registration requirements of the Securities Act. 
  Each Warrant not exercised prior to 5:00 p.m., New York City time, on the
  Expiration Date shall become void and all rights thereunder and all rights in
  respect thereof under this Agreement shall cease as of such time.  No
  adjustments as to dividends will be made upon exercise of the Warrants.

                                      9

 
            The Company shall give notice not less than 90, and not more than
  120, days prior to the Expiration Date to the Holders of all then outstanding
  Warrants to the effect that the Warrants will terminate and become void as of
  the 5:00 p.m., New York City time, on the Expiration Date.  If the Company
  fails to give such notice, the Warrants will not expire until 90 days after
  the Company gives such notice, provided in no event will Holders be entitled
  to any damages or other remedy for the Company's failure to give such notice
  other than any such extension.

            A Warrant may be exercised upon surrender to the Company at the
  principal office of the Warrant Agent of the certificate or certificates
  evidencing the Warrant to be exercised with the form of election to purchase
  on the reverse thereof duly filled in and signed, which signature shall be
  guaranteed by a bank or trust company having an office or correspondent in the
  United States or a broker or dealer which is a member of a registered
  securities exchange or the National Association of Securities Dealers, Inc.,
  and upon payment to the Warrant Agent for the account of the Company of the
  Exercise Price as adjusted as herein provided, for each of the Warrant Shares
  in respect of which such Warrant is then exercised.  Payment of the aggregate
  Exercise Price shall be made in cash or by certified or official bank check,
  payable to the order of the Company.  In the alternative, each Holder may
  exercise its right to receive Warrant Shares on a net basis, such that without
  the exchange of any funds, the Holder receives that number of Warrant Shares
  otherwise issuable upon exercise of its Warrants less that number of Warrant
  Shares having a fair market value equal to the aggregate Exercise Price that
  would otherwise have been paid by the Holder of the Warrant Shares.  For
  purposes of the foregoing sentence, "fair market value" of the Warrant Shares
  shall be the current market price of the Warrant Shares on the date
  immediately preceding the date of payment of the Exercise Price as determined
  by the procedures set forth in Section 13(f).  The exercise of Warrants by
  Holders of beneficial interest in Global Warrants shall be effected in
  accordance with this Agreement and the procedures of the Depositary therefor.

            Subject to the provisions of Section 9 hereof, upon surrender of
  Warrants and payment of the Exercise Price as provided above, the Warrant
  Agent shall thereupon promptly notify the Company, and the Company shall
  promptly transfer to the Holder of such Warrant Certificate a certificate or
  certificates for the appropriate number of Warrant Shares or other securities
  or property (including any money) to which the Holder is entitled, registered
  or otherwise placed in, or payable to the order of, such name or names as may
  be directed in writing by the Holder, and shall deliver such certificate or
  certificates representing the Warrant Shares and any other securities or
  property (including any money) to the person or persons entitled to receive
  the same, together with an amount in cash in lieu of any fraction of a share
  as provided in Section 15.  Any such certificate or certificates representing
  the Warrant Shares shall be deemed to have been issued and any person so
  designated to be named therein shall be deemed to have become a Holder of
  record of such Warrant Shares as of the date of the surrender of such Warrants
  and payment of the Exercise Price.

            The Warrants shall be exercisable commencing on the Exercisability
  Date, at the election of the Holders thereof, either in full or from time to
  time in part and, in the event that a certificate evidencing Warrants is
  exercised in respect of fewer than all of the Warrant Shares issuable on such
  exercise at any time prior to the date of expiration of the Warrants, a new
  certificate evidencing the remaining Warrant or Warrants will be issued, and
  the Warrant Agent is hereby irrevocably authorized to countersign and to
  deliver the required new Warrant Certificate or Certificates pursuant to the
  provisions of this Section and of Section 4 hereof, and the Company, whenever
  required by the

                                      10

 
  Warrant Agent, will supply the Warrant Agent with Warrant Certificates duly
  executed on behalf of the Company for such purpose.

            All Warrant Certificates surrendered upon exercise of Warrants shall
  be cancelled by the Warrant Agent.  Such cancelled Warrant Certificates shall
  then be disposed of by the Warrant Agent in a manner satisfactory to the
  Company. The Warrant Agent shall account promptly to the Company with respect
  to Warrants exercised and concurrently pay to the Company all monies received
  by the Warrant Agent for the purchase of the Warrant Shares through the
  exercise of such Warrants.

            The Warrant Agent shall keep copies of this Agreement and any
  notices given or received hereunder by or from the Company available for
  inspection by the Holders during normal business hours at its office.  The
  Company shall supply the Warrant Agent from time to time with such numbers of
  copies of this Agreement as the Warrant Agent may request.

            SECTION 9.  Payment of Taxes.  The Company will pay all documentary
                        ----------------                                       
  stamp taxes attributable to the initial issuance of Warrant Shares upon the
  exercise of Warrants or to any Separation; provided that the Company shall not
  be required to pay any tax or taxes which may be payable in respect of any
  transfer involved in the issue of any Warrant Certificates or any certificates
  for Warrant Shares in a name other than that of the Holder of a Warrant
  Certificate surrendered upon the exercise of a Warrant, and the Company shall
  not be required to issue or deliver such Warrant Certificates unless or until
  the person or persons requesting the issuance thereof shall have paid to the
  Company the amount of such tax or shall have established to the satisfaction
  of the Company that such tax has been paid.

            SECTION 10.  Mutilated or Missing Warrant Certificates.  In case any
                         -----------------------------------------              
  of the Warrant Certificates shall be mutilated, lost, stolen or destroyed, the
  Company may in its discretion issue and the Warrant Agent may countersign, in
  exchange and substitution for and upon cancellation of the mutilated Warrant
  Certificate, or in lieu of and substitution for the Warrant Certificate lost,
  stolen or destroyed, a new Warrant Certificate of like tenor and representing
  an equivalent number of Warrants, but only upon receipt of evidence reasonably
  satisfactory to the Company and the Warrant Agent of such loss, theft or
  destruction of such Warrant Certificate and indemnity, if requested, also
  reasonably satisfactory to them.  Applicants for such substitute Warrant
  Certificates shall also comply with such other reasonable regulations and pay
  such other reasonable charges as the Company or the Warrant Agent may
  prescribe.

            SECTION 11.  Reservation of Warrant Shares.  The Company will at all
                         -----------------------------                          
  times reserve and keep available, free from preemptive rights, out of the
  aggregate of its authorized but unissued Common Stock or its authorized and
  issued Common Stock held in its treasury, for the purpose of enabling it to
  satisfy any obligation to issue Warrant Shares upon exercise of Warrants, the
  maximum number of shares of Common Stock which may then be deliverable upon
  the exercise of all outstanding Warrants.

            The transfer agent for the Common Stock (the "Transfer Agent") and
  every subsequent transfer agent for any shares of the Company's capital stock
  issuable upon the exercise of any of the rights of purchase aforesaid will be
  irrevocably authorized and directed at all times to reserve such number of
  authorized shares as shall be required for such purpose. The Company will keep
  a copy of this Agreement on file with the Transfer Agent and with every
  subsequent transfer agent for any

                                      11

 
  shares of the Company's capital stock issuable upon the exercise of the rights
  of purchase represented by the Warrants.  The Warrant Agent is hereby
  irrevocably authorized to requisition from time to time from such Transfer
  Agent the stock certificates required to honor outstanding Warrants upon
  exercise thereof in accordance with the terms of this Agreement.  The Company
  will supply such Transfer Agent with duly executed certificates for such
  purposes and will provide or otherwise make available any cash which may be
  payable as provided in Section 15.  The Company will furnish such Transfer
  Agent a copy of all notices of adjustments and certificates related thereto,
  transmitted to each Holder of the Warrants pursuant to Section 16 hereof.

            Before taking any action which would cause an adjustment pursuant to
  Section 13 hereof to reduce the Exercise Price below the then par value (if
  any) of the Warrant Shares, the Company will take any corporate action which
  may, in the opinion of its counsel (which may be counsel employed by the
  Company), be necessary in order that the Company may validly and legally issue
  fully paid and nonassessable Warrant Shares at the Exercise Price as so
  adjusted.

            The Company covenants that all Warrant Shares which may be issued
  upon exercise of Warrants in accordance with the terms of this Agreement
  (including the terms of the Exercise Price) will, upon issue, be duly and
  validly issued, fully paid, nonassessable, free of preemptive rights and free
  from all taxes, liens, charges and security interests with respect to the
  issue thereof.

            SECTION 12.  Obtaining Stock Exchange Listings.  The Company will
                         ---------------------------------                   
  from time to time take all action which may be necessary so that the Warrant
  Shares, immediately upon their issuance upon the exercise of Warrants, will be
  listed on the principal securities exchanges and markets (including, without
  limitation, the Nasdaq National Market) within the United States of America,
  if any, on which other shares of Common Stock are then listed.  Upon the
  listing of such Warrant Shares, the Company shall notify the Warrant Agent in
  writing.  The Company will obtain and keep all required permits and records in
  connection with such listing.

            SECTION 13.  Adjustment of Exercise Price and Number of Warrant
                         --------------------------------------------------
  Shares Issuable. The number and kind of shares purchasable upon the exercise
  ---------------                                                             
  of Warrants and the Exercise Price shall be subject to adjustment from time to
  time as follows:

            (a) Stock Splits, Combinations, etc.  In case the Company shall
                -------------------------------                            
  hereafter (A) pay a dividend or make a distribution on its Common Stock in
  shares of its capital stock (whether shares of Common Stock or of capital
  stock of any other class), (B) subdivide its outstanding shares of Common
  Stock, (C) combine its outstanding shares of Common Stock into a smaller
  number of shares or (D) issue by reclassification of its shares of Common
  Stock any shares of capital stock of the Company, the Exercise Price in effect
  immediately prior to such action shall be adjusted so that the Holder of any
  Warrant thereafter exercised shall be entitled to receive the number of shares
  of capital stock of the Company which such Holder would have owned immediately
  following such action had such Warrant been exercised immediately prior
  thereto.  An adjustment made pursuant to this paragraph shall become effective
  immediately after the record date in the case of a dividend and shall become
  effective immediately after the effective date in the case of a subdivision,
  combination or reclassification.  If, as a result of an adjustment made
  pursuant to this paragraph, the Holder of any Warrant thereafter exercised
  shall become entitled to receive shares of two or more classes of capital
  stock of the Company, the Board of Directors of the Company (whose
  determination shall be conclusive) shall

                                      12

 
  determine the allocation of the adjusted Exercise Price between or among
  shares of such classes of capital stock.

            (b) Reclassification, Combinations, Mergers, etc.  In case of any
                --------------------------------------------                 
  reclassification or change of outstanding shares of Common Stock issuable upon
  exercise of the Warrants (other than as set forth in paragraph (a) above and
  other than a change in par value, or from par value to no par value, or from
  no par value to par value or as a result of a subdivision or combination), or
  in case of any consolidation or merger of the Company with or into another
  corporation (other than a merger in which the Company is the continuing
  corporation and which does not result in any reclassification or change of the
  then outstanding shares of Common Stock or other capital stock issuable upon
  exercise of the Warrants) or in case of any sale or conveyance to another
  corporation of the property of the Company as an entirety or substantially as
  an entirety, then, as a condition of such reclassification, change,
  consolidation, merger, sale or conveyance, the Company or such a successor or
  purchasing corporation, as the case may be, shall forthwith make lawful and
  adequate provision whereby the Holder of such Warrant then outstanding shall
  have the right thereafter to receive on exercise of such Warrant the kind and
  amount of shares of stock and other securities and property receivable upon
  such reclassification, change, consolidation, merger, sale or conveyance by a
  Holder of the number of shares of Common Stock issuable upon exercise of such
  Warrant immediately prior to such reclassification, change, consolidation,
  merger, sale or conveyance and enter into a supplemental warrant agreement so
  providing.  Such provisions shall include provision for adjustments which
  shall be as nearly equivalent as may be practicable to the adjustments
  provided for in this Section 13.  If the issuer of securities deliverable upon
  exercise of Warrants under the supplemental warrant agreement is an affiliate
  of the formed, surviving or transferee corporation, that issuer shall join in
  the supplemental warrant agreement.  The above provisions of this paragraph
  (b) shall similarly apply to successive reclassifications and changes of
  shares of Common Stock and to successive consolidations, mergers, sales or
  conveyances.

            (c) Issuance of Options or Convertible Securities.  In the event the
                ---------------------------------------------                   
  Company shall, at any time or from time to time after the date hereof, issue,
  sell, distribute or otherwise grant in any manner (including by assumption) to
  all holders of the Common Stock any rights to subscribe for or to purchase, or
  any warrants or options for the purchase of, Common Stock or any stock or
  securities convertible into or exchangeable for Common Stock (any such rights,
  warrants or options being herein called "Options" and any such convertible or
  exchangeable stock or securities being herein called "Convertible Securities")
  or any Convertible Securities (other than upon exercise of any Option),
  whether or not such Options or the rights to convert or exchange such
  Convertible Securities are immediately exercisable, and the price per share at
  which Common Stock is issuable upon the exercise of such Options or upon the
  conversion or exchange of such Convertible Securities (determined by dividing
  (i) the aggregate amount, if any, received or receivable by the Company as
  consideration for the issuance, sale, distribution or granting of such Options
  or any such Convertible Security, plus the minimum aggregate amount of
  additional consideration, if any, payable to the Company upon the exercise of
  all such Options or upon conversion or exchange of all such Convertible
  Securities, plus, in the case of Options to acquire Convertible Securities,
  the minimum aggregate amount of additional consideration, if any, payable upon
  the conversion or exchange of all such Convertible Securities, by (ii) the
  total maximum number of shares of Common Stock issuable upon the exercise of
  all such Options or upon the conversion or exchange of all such Convertible
  Securities or upon the conversion or exchange of all Convertible Securities
  issuable upon the exercise of all such Options) shall be less than the current
  market price per share of Common Stock on the record date for the issuance,
  sale,

                                      13

 
  distribution or granting of such Options or Convertible Securities (any such
  event being herein called a "Distribution"), then, effective upon such
  Distribution, (I) the Exercise Price shall be reduced to the price (calculated
  to the nearest 1/1,000 of one cent) determined by multiplying the Exercise
  Price in effect immediately prior to such Distribution by a fraction, the
  numerator of such shall be the sum of (1) the number of shares of Common Stock
  outstanding (exclusive of any treasury shares) immediately prior to such
  Distribution multiplied by the current market price per share of Common Stock
  on the date of such Distribution plus (2) the consideration, if any, received
  by the Company upon such Distribution, and the denominator of which shall be
  the product of (A) the total number of shares of Common Stock outstanding
  (exclusive of any treasury shares) immediately after such Distribution
  multiplied by (B) the current market price per share of Common Stock on the
  record date for such Distribution and (II) the number of shares of Common
  Stock purchasable upon the exercise of each Warrant shall be increased to a
  number determined by multiplying the number of shares of Common Stock so
  purchasable immediately prior to the record date for such Distribution by a
  fraction, the numerator of which shall be the Exercise Price in effect
  immediately prior to the adjustment required by clause (I) of this sentence
  and the denominator of which shall be the Exercise Price in effect immediately
  after such adjustment (for the purposes of this clause (ii) without giving
  effect to the provisions of Section 13(h)).  For purposes of the foregoing,
  the total maximum number of shares of Common Stock issuable upon exercise of
  all such Options or upon conversion or exchange of all such Convertible
  Securities or upon the conversion or exchange of the total maximum amount of
  the Convertible Securities issuable upon the exercise of all such Options
  shall be deemed to have been issued as of the date of such Distribution and
  thereafter shall be deemed to be outstanding and the Company shall be deemed
  to have received as consideration therefor such price per share, determined as
  provided above.  Except as provided in paragraphs (j) and (k) below, no
  additional adjustment of the Exercise Price shall be made upon the actual
  exercise of such Options or upon conversion or exchange of the Convertible
  Securities or upon the conversion or exchange of the Convertible Securities
  issuable upon the exercise of such Options.

            (d) Dividends and Distributions.  In the event the Company shall, at
                ---------------------------                                     
  any time or from time to time after the date thereof, distribute to all the
  holders of Common Stock any dividend or other distribution of cash, evidences
  of its indebtedness, other securities or other properties or assets (in each
  case other than (i) dividends payable in Common Stock, Options or Convertible
  Securities and (ii) any cash dividend that, when added to all other cash
  dividends paid in the one year prior to the declaration date of such dividend
  (excluding any such other dividend included in a previous adjustment of the
  Exercise Price pursuant to this paragraph (d)), does not exceed 5% of the
  current market price per share of Common Stock on such declaration date), or
  any options, warrants or other rights to subscribe for or purchase any of the
  foregoing, then (A) the Exercise Price shall be decreased to a price
  determined by multiplying the Exercise Price then in effect by a fraction, the
  numerator of which shall be the current market price per share of Common Stock
  on the record date for such distribution less the sum of (X) the cash portion,
  if any, of such distribution per share of Common Stock outstanding (exclusive
  of any treasury shares) on the record date for such distribution plus (Y) the
  then fair market value (as determined in good faith by the Board of Directors
  of the Company) per share of Common Stock outstanding (exclusive of any
  treasury shares) on the record date for such distribution of that portion, if
  any, of such distribution consisting of evidences of indebtedness, other
  securities, properties, assets, options, warrants or subscription or purchase
  rights, and the denominator of which shall be such current market price per
  share of Common Stock and (B) the number of shares of Common Stock purchasable
  upon the exercise of each Warrant shall be increased to a number determined by
  multiplying the number of shares of Common Stock so purchasable immediately
  prior to the record date for such distribution by a fraction, the numerator of
  which shall be the Exercise Price in effect immediately prior to the

                                      14

 
  adjustment required by clause (A) of this sentence and the denominator of
  which shall be the Exercise Price in effect immediately after such adjustment
  (for the purposes of this clause (B) without giving effect to the provisions
  of Section 13(h)).  The adjustments required by this paragraph (d) shall be
  made whenever any such distribution occurs retroactive to the record date for
  the determination of stockholders entitled to receive such distribution.

            (e) Current Market Price.  For the purpose of any computation of
                --------------------                                        
  current market price under this Section 13 and Section 15, the current market
  price per share of Common Stock at any date shall be (x) for purposes of
  Section 15, the closing price on the business day immediately prior to the
  exercise of the applicable Warrant pursuant to Section 8 and (y) in all other
  cases, the average of the daily closing prices for the shorter of (i) the 20
  consecutive trading days ending on the last full trading day on the exchange
  or market specified in the second succeeding sentence prior to the Time of
  Determination (as defined below) and (ii) the period commencing on the date
  next succeeding the first public announcement of the issuance, sale,
  distribution or granting in question through such last full trading day prior
  to the Time of Determination.  The term "Time of Determination" as used herein
  shall be the time and date of the earlier to occur of (A) the date as of which
  the current market price is to be computed and (B) the last full trading day
  on such exchange or market before the commencement of "ex-dividend" trading in
  the Common Stock relating to the event giving rise to the adjustment required
  by paragraph (a), (b), (c) or (d).  The closing price for any day shall be the
  last reported sale price regular way or, in case no such reported sale takes
  place on such day, the average of the closing bid and asked prices regular way
  for such day, in each case (1) on the principal national securities exchange
  on which the shares of Common Stock are listed or to which such shares are
  admitted to trading or (2) if the Common Stock is not listed or admitted to
  trading on a national securities exchange, in the over-the-counter market as
  reported by Nasdaq National Market or any comparable system or (3) if the
  Common Stock is not listed on Nasdaq National Market or a comparable system,
  as furnished by two members of the NASD selected from time to time in good
  faith by the Board of Directors of the Company for that purpose.  In the
  absence of all of the foregoing, or if for any other reason the current market
  price per share cannot be determined pursuant to the foregoing provisions of
  this paragraph (e), the current market price per share shall be the fair
  market value thereof as determined in good faith by the Board of Directors of
  the Company.

            (f) Certain Distributions.  If the Company shall pay a dividend or
                ---------------------                                         
  make any other distribution payable in Options or Convertible Securities,
  then, for purposes of paragraph (c) above, such Options or Convertible
  Securities shall be deemed to have been issued or sold without consideration.

            (g) Consideration Received.  If any shares of Common Stock, Options
                ----------------------                                         
  or Convertible Securities shall be issued, sold or distributed for a
  consideration other than cash, the amount of the consideration other than cash
  received by the Company in respect thereof shall be deemed to be the then fair
  market value of such consideration (as determined in good faith by the Board
  of Directors of the Company).  If any Options shall be issued in connection
  with the issuance and sale of other securities of the Company, together
  comprising one integral transaction in which no specific consideration is
  allocated to such Options by the parties thereto, such Options shall be deemed
  to have been issued without consideration; provided, that if such Options have
  an exercise price equal to or greater than the current market price of the
  Common Stock on the date of issuance of such Options, then such Options shall
  be deemed to have been issued for consideration equal to such exercise price.

                                      15

 
            (h) Deferral of Certain Adjustments.  No adjustment to the Exercise
                -------------------------------                                
  Price (including the related adjustment to the number of shares of Common
  Stock purchasable upon the exercise of each Warrant) shall be required
  hereunder unless such adjustment, together with other adjustments carried
  forward as provided below, would result in an increase or decrease of at least
  one percent of the Exercise Price; provided that any adjustments which by
  reason of this paragraph (i) are not required to be made shall be carried
  forward and taken into account in any subsequent adjustment. No adjustment
  need be made for a change in the par value of the Common Stock.  All
  calculations under this Section shall be made to the nearest 1/1,000 of one
  cent or to the nearest 1/1000 of a share, as the case may be.

            (i) Changes in Options and Convertible Securities.  If the exercise
                ---------------------------------------------                  
  price provided for in any Options referred to in paragraph (c) above, the
  additional consideration, if any, payable upon the conversion or exchange of
  any Convertible Securities referred to in paragraph (c) above, or the rate at
  which any Convertible Securities referred to in paragraph (c) above are
  convertible into or exchangeable for Common Stock shall change at any time
  (other than under or by reason of provisions designed to protect against
  dilution upon an event which results in a related adjustment pursuant to this
  Section 13), the Exercise Price then in effect and the number of shares of
  Common Stock purchasable upon the exercise of each Warrant shall forthwith be
  readjusted (effective only with respect to any exercise of any Warrant after
  such readjustment) to the Exercise Price and number of shares of Common Stock
  so purchasable that would then be in effect had the adjustment made upon the
  issuance, sale, distribution or granting of such Options or Convertible
  Securities been made based upon such changed purchase price, additional
  consideration or conversion rate, as the case may be, but only with respect to
  such Options and Convertible Securities as then remain outstanding.

            (j) Expiration of Options and Convertible Securities.  If, at any
                ------------------------------------------------             
  time after any adjustment to the number of shares of Common Stock purchasable
  upon the exercise of each Warrant shall have been made pursuant to paragraph
  (c) or (i) above or this paragraph (j), any Options or Convertible Securities
  shall have expired unexercised, the number of such shares so purchasable
  shall, upon such expiration, be readjusted and shall thereafter be such as
  they would have been had they been originally adjusted (or had the original
  adjustment not been required, as the case may be) as if (i) the only shares of
  Common Stock deemed to have been issued in connection with such Options or
  Convertible Securities were the shares of Common Stock, if any, actually
  issued or sold upon the exercise of such Options or Convertible Securities and
  (ii) such shares of Common Stock, if any, were issued or sold for the
  consideration actually received by the Company upon such exercise plus the
  aggregate consideration, if any, actually received by the Company for the
  issuance, sale, distribution or granting of all such Options or Convertible
  Securities, whether or not exercised; provided that no such readjustment shall
  have the effect of decreasing the number of such shares so purchasable by an
  amount (calculated by adjusting such decrease to account for all other
  adjustments made pursuant to this Section 13 following the date of the
  original adjustment referred to above) in excess of the amount of the
  adjustment initially made in respect of the issuance, sale, distribution or
  granting of such Options or Convertible Securities.

            (k) Other Adjustments.  In the event that at any time, as a result
                -----------------                                             
  of an adjustment made pursuant to this Section 13, the Holders shall become
  entitled to receive any securities of the Company other than shares of Common
  Stock, thereafter the number of such other securities so receivable upon
  exercise of the Warrants and the Exercise Price applicable to such exercise
  shall be

                                      16

 
  subject to adjustment from time to time in a manner and on terms as nearly
  equivalent as practicable to the provisions with respect to the shares of
  Common Stock contained in this Section 13.

            (l) Adjustment in Number of Shares. Upon each adjustment of the
                ------------------------------                             
  Exercise Price pursuant to this Section 13 or upon the occurrence of any event
  or action which would require an adjustment of the Exercise Price pursuant to
  this Section 13 but for Section 13(h), each Warrant outstanding prior to the
  making of the adjustment in the Exercise Price shall thereafter evidence the
  right to receive upon payment of the adjusted Exercise Price that number of
  share of Common Stock obtained by dividing (i) the sum of the adjusted number
  of Warrant Shares issuable upon exercise of a Warrant by payment of the
  adjusted Exercise Price plus the Exercise Price prior to adjustment by (ii)
  the adjusted Exercise Price (without giving effect to the provisions of
  Section 13(h)).

            Irrespective of any adjustments in the Exercise Price or the number
  or kind of shares purchasable upon the exercise of the Warrants, Warrants
  theretofore or thereafter issued may continue to express the same price and
  number and kind of shares as are stated in the Warrants initially issuable
  pursuant to this Agreement.

            SECTION 14.  Statement on Warrants.  Irrespective of any adjustment
                         ---------------------                                 
  in the number or kind of shares issuable upon the exercise of the Warrants or
  the Exercise Price, Warrants theretofore or thereafter issued may continue to
  express the same number and kind of shares as are stated in the Warrants
  initially issuable pursuant to this Agreement.

            SECTION 15.  Fractional Interest.  The Company shall not be required
                         -------------------                                    
  to issue fractional shares of Common Stock on the exercise of Warrants.  If
  more than one Warrant shall be presented for exercise in full at the same time
  by the same Holder, the number of full shares of Common Stock which shall be
  issuable upon such exercise shall be computed on the basis of the aggregate
  number of shares of Common Stock acquirable on exercise of the Warrants so
  presented. If any fraction of a share of Common Stock would, except for the
  provisions of this Section, be issuable on the exercise of any Warrant (or
  specified portion thereof), the Company shall direct the Transfer Agent to pay
  an amount in cash calculated by it to equal the then current market price per
  share multiplied by such fraction computed to the nearest whole cent.  The
  Holders, by their acceptance of the Warrant Certificates, expressly waive any
  and all rights to receive any fraction of a share of Common Stock or a stock
  certificate representing a fraction of a share of Common Stock.

            SECTION 16.  Notices to Warrant Holders.  Upon any adjustment of the
                         --------------------------                             
  Exercise Price pursuant to Section 13, the Company shall promptly thereafter
  (i) cause to be filed with the Warrant Agent a certificate of a firm of
  independent public accountants of recognized standing selected by the Board of
  Directors of the Company (who may be the regular auditors of the Company)
  setting forth the Exercise Price after such adjustment and setting forth in
  reasonable detail the method of calculation and the facts upon which such
  calculations are based and setting forth the number of Warrant Shares (or
  portion thereof) issuable after such adjustment in the Exercise Price, upon
  exercise of a Warrant and payment of the adjusted Exercise Price, which
  certificate shall be conclusive evidence of the correctness of the matters set
  forth therein, and (ii) cause to be given to each of the registered Holders of
  the Warrant Certificates at his address appearing on the Warrant register
  written notice of such adjustments by first-class mail, postage prepaid.  The
  Warrant Agent shall be entitled to rely on the above-referenced accountant's
  certificate and shall be under no duty or responsibility with respect to any
  such certificate, except to exhibit the same from time to time to any Holder
  desiring an inspection

                                      17

 
  thereof during reasonable business hours.  The Warrant Agent shall not at any
  time be under any duty or responsibility to any Holder to determine whether
  any facts exist that may require any adjustment of the number of shares of
  Common Stock or other stock or property issuable on exercise of the Warrants
  or the Exercise Price, or with respect to the nature or extent of any such
  adjustment when made, or with respect to the method employed in making such
  adjustment or the validity or value (or the kind or amount) of any shares of
  Common Stock or other stock or property which may be issuable on exercise of
  the Warrants.  The Warrant Agent shall not be responsible for any failure of
  the Company to make any cash payment or to issue, transfer or deliver any
  shares of Common Stock or stock certificates or other common stock or property
  upon the exercise of any Warrant.

            In case:

            (a) the Company shall authorize the issuance to all holders of 
     shares of Common Stock of rights, options or warrants to subscribe for or
     purchase shares of Common Stock or of any other subscription rights or
     warrants; or

            (b) the Company shall authorize the distribution to all holders of
     shares of Common Stock of evidences of its indebtedness or assets (other
     than cash dividends or cash distributions payable out of consolidated
     earnings or earned surplus or dividends payable in shares of Common Stock
     or distributions referred to in Section 13 hereof); or

            (c) of any consolidation or merger to which the Company is a party 
     and for which approval of any shareholders of the Company is required, or
     of the conveyance or transfer of the properties and assets of the Company
     substantially as an entirety, or of any reclassification or change of
     Common Stock issuable upon exercise of the Warrants (other than a change
     in par value, or from par value to no par value, or from no par value to
     par value, or as a result of a subdivision or combination), or a tender
     offer or exchange offer for shares of Common Stock; or

            (d) of the voluntary or involuntary dissolution, liquidation or 
     winding up of the Company; or

            (e) a Change of Control (as defined in the Indenture) occurs; or

            (f) the Company proposes to take any other action that would 
     require an adjustment of the Exercise Price or the number of Warrant
     Shares pursuant to Section 13;

  then the Company shall cause to be filed with the Warrant Agent and shall
  cause to be given to each of the registered Holders of the Warrant
  Certificates at such Holder's address appearing on the Warrant register, at
  least 20 days (or 10 days in any case specified in clauses (a) or (b) above)
  prior to the applicable record date hereinafter specified, or promptly in the
  case of events for which there is no record date, by first class mail, postage
  prepaid, a written notice stating (i) the date as of which the holders of
  record of shares of Common Stock to be entitled to receive any such rights,
  options, warrants or distribution are to be determined, or (ii) the initial
  expiration date set forth in any tender offer or exchange offer for shares of
  Common Stock, or (iii) the date on which any such consolidation, merger,
  conveyance, transfer, dissolution, liquidation or winding up or Change of
  Control is expected to become effective or consummated, and the date as of
  which it is expected that holders of record of shares of

                                      18

 
  Common Stock shall be entitled to exchange such shares for securities or other
  property, if any, deliverable upon such reclassification, consolidation,
  merger, conveyance, transfer, dissolution, liquidation or winding up or Change
  of Control.  The failure to give the notice required by this Section 16 or any
  defect therein shall not affect the legality or validity of any distribution,
  right, option, warrant, consolidation, merger, conveyance, transfer,
  dissolution, liquidation or winding up, or Change of Control or the vote upon
  any action.  Nothing contained in this Agreement or in any of the Warrant
  Certificates shall be construed as conferring upon the Holders thereof the
  right to vote or to consent or to receive notice as shareholders in respect of
  the meetings of shareholders or the election of Directors of the Company or
  any other matter, or any rights whatsoever as shareholders of the Company.

            SECTION 17.  Merger, Consolidation or Change of Name of Warrant
                         --------------------------------------------------
  Agent.  Any corporation into which the Warrant Agent may be merged or with
  -----                                                                     
  which it may be consolidated, or any corporation resulting from any merger or
  consolidation to which the Warrant Agent shall be a party, or any corporation
  succeeding to the business of the Warrant Agent, shall be the successor to the
  Warrant Agent hereunder without the execution or filing of any paper or any
  further act on the part of any of the parties hereto, provided that such
  corporation would be eligible for appointment as a successor warrant agent
  under the provisions of Section 19.  Any such successor Warrant Agent shall
  promptly cause notice of its succession as Warrant Agent to be mailed (by
  first class mail, postage prepaid) to each Holder at such Holder's last
  address as shown on the register maintained by the Warrant Agent pursuant this
  Agreement.  In case at the time such successor to the Warrant Agent shall
  succeed to the agency created by this Agreement, and in case at that time any
  of the Warrant Certificates shall have been countersigned but not delivered,
  any such successor to the Warrant Agent may adopt the countersignature of the
  original Warrant Agent; and in case at that time any of the Warrant
  Certificates shall not have been countersigned, any successor to the Warrant
  Agent may countersign such Warrant Certificates either in the name of the
  predecessor Warrant Agent or in the name of the successor to the Warrant
  Agent; and in all such cases such Warrant Certificates shall have the full
  force and effect provided in the Warrant Certificates and in this Agreement.

            In case at any time the name of the Warrant Agent shall be changed
  and at such time any of the Warrant Certificates shall have been countersigned
  but not delivered, the Warrant Agent whose name has been changed may adopt the
  countersignature under its prior name, and in case at that time any of the
  Warrant Certificates shall not have been countersigned, the Warrant Agent may
  countersign such Warrant Certificates either in its prior name or in its
  changed name, and in all such cases such Warrant Certificates shall have the
  full force and effect provided in the Warrant Certificates and in this
  Agreement.

            SECTION 18.  Warrant Agent.  The Warrant Agent undertakes the duties
                         -------------                                          
  and obligations imposed by this Agreement upon the following terms and
  conditions, by all of which the Company and the Holders of Warrants, by their
  acceptance thereof, shall be bound:

            (a) The statements contained herein and in the Warrant Certificates
     shall be taken as statements of the Company and the Warrant Agent assumes
     no responsibility for the correctness of any of the same except such as
     describe the Warrant Agent or action taken or to be taken by it.  The
     Warrant Agent assumes no responsibility with respect to the distribution
     of the Warrant Certificates except as herein otherwise provided.

                                      19

 
            (b) The Warrant Agent shall not be responsible for any failure of
     the Company to comply with any of the covenants contained in this
     Agreement or in the Warrant Certificates to be complied with by the
     Company.

            (c) The Warrant Agent may consult at any time with counsel
     satisfactory to it (who may be counsel for the Company) and the Warrant
     Agent shall incur no liability or responsibility to the Company or to any
     Holder of any Warrant Certificate in respect of any action taken, suffered
     or omitted by it hereunder in good faith and in accordance with the
     opinion or the advice of such counsel.

            (d) The Warrant Agent shall incur no liability or responsibility to
     the Company or to any Holder of any Warrant Certificate for any action
     taken in reliance on any Warrant Certificate, certificate of shares,
     notice, resolution, waiver, consent, order, certificate, or other paper,
     document or instrument believed by it to be genuine and to have been
     signed, sent or presented by the proper party or parties.

            (e) The Company agrees to pay to the Warrant Agent reasonable
     compensation for all services rendered by the Warrant Agent in the
     execution of this Agreement, to reimburse the Warrant Agent for all
     expenses, taxes and governmental charges and other charges of any kind and
     nature reasonably incurred by the Warrant Agent in the execution of this
     Agreement and to indemnify the Warrant Agent and save it harmless against
     any and all liabilities, including judgments, reasonable costs and counsel
     fees, for anything done or omitted by the Warrant Agent in the execution
     of this Agreement except as a result of its negligence or bad faith.

            (f) The Warrant Agent shall be under no obligation to institute any
     action, suit or legal proceeding or to take any other action likely to
     involve expense unless the Company or one or more Holders of Warrant
     Certificates shall furnish the Warrant Agent with reasonable security and
     indemnity for any costs and expenses which may be incurred, but this
     provision shall not affect the power of the Warrant Agent to take such
     action as it may consider proper, whether with or without any such
     security or indemnity.  All rights of action under this Agreement or under
     any of the Warrants may be enforced by the Warrant Agent without the
     possession of any of the Warrant Certificates or the production thereof at
     any trial or other proceeding relative thereto, and any such action, suit
     or proceeding instituted by the Warrant Agent shall be brought in its name
     as Warrant Agent and any recovery of judgment shall be for the ratable
     benefit of the Holders of the Warrants, as their respective rights or
     interests may appear.

            (g) The Warrant Agent, and any stockholder, director, officer or
     employee of it, may buy, sell or deal in any of the Warrants or other
     securities of the Company or become pecuniarily interested in any
     transaction in which the Company may be interested, or contract with or
     lend money to the Company or otherwise act as fully and freely as though
     it were not Warrant Agent under this Agreement.  Nothing herein shall
     preclude the Warrant Agent from acting in any other capacity for the
     Company or for any other legal entity.

            (h) The Warrant Agent shall act hereunder solely as agent for the
     Company, and its duties shall be determined solely by the provisions
     hereof. The Warrant

                                      20

 
     Agent shall not be liable for anything which it may do or refrain from
     doing in connection with this Agreement except for its own negligence or
     bad faith.

            (i) The Warrant Agent shall not at any time be under any duty or
     responsibility to any Holder of any Warrant Certificate to make or cause
     to be made any adjustment of the Exercise Price or number of the Warrant
     Shares or other securities or property deliverable as provided in this
     Agreement, or to determine whether any facts exist which may require any
     of such adjustments, or with respect to the nature or extent of any such
     adjustments, when made, or with respect to the method employed in making
     the same.  The Warrant Agent shall not be accountable with respect to the
     validity or value or the kind or amount of any Warrant Shares or of any
     securities or property which may at any time be issued or delivered upon
     the exercise of any Warrant or with respect to whether any such Warrant
     Shares or other securities will when issued be validly issued and fully
     paid and nonassessable, and makes no representation with respect thereto.

            SECTION 19.  Resignation and Removal of Warrant Agent; Appointment
                         -----------------------------------------------------
  of Successor.  No resignation or removal of the Warrant Agent and no
  ------------                                                        
  appointment of a successor warrant agent shall become effective until the
  acceptance of appointment by the successor warrant agent as provided herein.
  The Warrant Agent may resign its duties and be discharged from all further
  duties and liability hereunder (except liability arising as a result of the
  Warrant Agent's own negligence of willful misconduct) after giving written
  notice to the Company.  The Company may remove the Warrant Agent upon written
  notice, and the Warrant Agent shall thereupon in like manner be discharged
  from all further duties and liabilities hereunder, except as aforesaid.  The
  Warrant Agent shall, at the Company's expense, cause to be mailed (by first
  class mail, postage prepaid) to each Holder of a Warrant at his last address
  as shown on the register of the Company maintained by the Warrant Agent a copy
  of said notice of resignation or notice of removal, as the case may be.  Upon
  such resignation or removal, the Company shall appoint in writing a new
  warrant agent.  If the Company shall fail to make such appointment within a
  period of 30 days after it has been notified in writing of such resignation by
  the resigning Warrant Agent or after such removal, then the resigning Warrant
  Agent or the Holder of any Warrant may apply to any court of competent
  jurisdiction for the appointment of a new warrant agent.  Any new warrant
  agent, whether appointed by the Company or by such a court, shall be a
  corporation doing business under the laws of the United States or any state
  thereof, in good standing and having a combined capital and surplus of not
  less than $50,000,000.  The combined capital and surplus of any such new
  warrant agent shall be deemed to be the combined capital and surplus as set
  forth in the most recent annual report of its condition published by such
  warrant agent prior to its appointment, provided that such reports are
  published at least annually pursuant to law or to the requirements of a
  federal or state supervising or examining authority.  After acceptance in
  writing of such appointment by the new warrant agent, it shall be vested with
  the same powers, rights, duties and responsibilities as if it had been
  originally named herein as the Warrant Agent, without any further assurance,
  conveyance, act or deed; but if for any reason it shall be necessary or
  expedient to execute and deliver any further assurance, conveyance, act or
  deed, the same shall be done at the expense of the Company and shall be
  legally and validly executed and delivered by the resigning or removed Warrant
  Agent.  Not later than the effective date of any such appointment, the Company
  shall give notice thereof to the resigning or removed Warrant Agent.  Failure
  to give any notice provided for in this Section, however, or any defect
  therein, shall not affect the legality or validity of the resignation of the
  Warrant Agent or the appointment of a new warrant agent, as the case may be.

                                      21

 
            SECTION 20.  Registration.  The Company and the Warrant Agent
                         ------------                                    
  acknowledge that Holders shall have the registration rights set forth in the
  Warrant Registration Rights Agreement.

             SECTION 21.  Reports.
                          ------- 

            (a) So long as any of the Warrants remain outstanding, and to the
  extent the Company is required to send such documents to the holders of its
  outstanding Common Stock, whether or not required by the rules and regulations
  of the Securities and Exchange Commission (the "Commission"), the Company
  shall furnish to the Holders of the Warrants (i) all quarterly and annual
  financial information that would be required to be contained in a filing with
  the Commission on Forms 10-Q and 10-K if the Company were required to file
  such Forms, including a "Management's Discussion and Analysis of Financial
  Condition and Results of Operations" and, with respect to the annual
  information only, a report thereon by the Company's certified independent
  accountants; (ii) all current reports that would be required to be filed with
  the Commission on Form 8-K if the Company were required to file such reports;
  and (iii) on a quarterly basis, certain financial information and operating
  data with respect to each Subsidiary (as defined in the Indenture) and Joint
  Venture (as defined in the Indenture) engaged in a Telecommunications Business
  (as defined in the Indenture), in the form specified by Schedule __ of the
  Indenture.  In addition, whether or not required by the rules and regulations
  of the Commission, the Company will file a copy of all such information and
  reports with the Commission for public availability (unless the Commission
  will not accept such a filing) and make such information available to
  securities analysts and prospective investors upon request.

            (b) The Company shall provide the Warrant Agent with a sufficient
  number of copies of all SEC Reports that the Warrant Agent may be required to
  deliver to the Holders of the Warrants under this Section 21.

            SECTION 22.  Rule 144A.  The Company hereby agrees with each Holder,
                         ---------                                              
  for so long as any Registrable Securities remain outstanding, to make
  available, upon request of any Holder of Registrable Securities, to any Holder
  or beneficial owner of Registrable Securities in connection with any sale
  thereof and any prospective purchaser of such Registrable Securities
  designated by such Holder or beneficial owner, the information required by
  Rule 144A(d)(4) under the Securities Act in order to permit resales of such
  Registrable Securities pursuant to Rule 144A.

            SECTION 23.  Notices to Company and Warrant Agent. Any notice or
                         ------------------------------------               
  demand authorized by this Agreement to be given or made by the Warrant Agent
  or by the Holder of any Warrant Certificate to or on the Company shall be
  sufficiently given or made when and if deposited in the mail, first class or
  registered, postage prepaid, addressed (until another address is filed in
  writing by the Company with the Warrant Agent), as follows:

               Hyperion Telecommunications, Inc
               5 West Third Street
               Coudersport, Pennsylvania  016915
               Telecopy:  (814) 274-8631
               Attention: Daniel R. Milliard

                                      22

 
            In case the Company shall fail to maintain such office or agency or
  shall fail to give such notice of the location or of any change in the
  location thereof, presentations may be made and notices and demands may be
  served at the principal office of the Warrant Agent.

            Any notice pursuant to this Agreement to be given by the Company or
  by the Holder(s) of any Warrant Certificate to the Warrant Agent shall be
  sufficiently given when and if deposited in the mail, first-class or
  registered, postage prepaid, addressed (until another address is filed in
  writing by the Warrant Agent with the Company) to the Warrant Agent as
  follows:

                 Bank or Montreal Trust Company
                 77 Water Street
                 New York, New York  10005
                 Telecopy: (212) 701-7684
                 Attention:

            SECTION 24.  Supplements and Amendments.   The Company and the
                         --------------------------                       
  Warrant Agent may from time to time supplement or amend this Agreement without
  the approval of any Holders of Warrant Certificates in order to cure any
  ambiguity or to correct or supplement any provision contained herein which may
  be defective or inconsistent with any other provision herein, or to make any
  other provisions in regard to matters or questions arising hereunder which the
  Company and the Warrant Agent may deem necessary or desirable and which shall
  not in any way adversely affect the interests of the Holders of Warrant
  Certificates.  Any amendment or supplement to this Agreement that has a
  material adverse effect on the interests of Holders shall require the written
  consent of Holders representing a majority of the then outstanding Warrants.
  The consent of each Holder of a Warrant affected shall be required for any
  amendment pursuant to which the Exercise Price would be increased or the
  number of Warrant Shares purchasable upon  exercise of Warrants would be
  decreased.  The Warrant Agent shall be entitled to receive and, subject to
  Section 18, shall be fully protected in relying upon, an officers' certificate
  and opinion of counsel as conclusive evidence that any such amendment or
  supplement is authorized or permitted hereunder, that it is not inconsistent
  herewith, and that it will be valid and binding upon the Company in accordance
  with its terms.

            SECTION 25.  Successors.  All the covenants and provisions of this
                         ----------                                           
  Agreement by or for the benefit of the Company or the Warrant Agent shall bind
  and inure to the benefit of their respective successors and assigns hereunder.

            SECTION 26.  Termination.  This Agreement (other than the Company's
                         -----------                                           
  obligations with respect to Warrants previously exercised and with respect to
  indemnification under Section 18) shall terminate at 5:00 p.m., New York City
  time on the Expiration Date.

            SECTION 27.  Governing Law.  THIS AGREEMENT AND EACH WARRANT
                         -------------                                  
  CERTIFICATE ISSUED HEREUNDER SHALL BE DEEMED TO BE A CONTRACT MADE UNDER THE
  LAWS OF THE STATE OF NEW YORK AND FOR ALL PURPOSES SHALL BE CONSTRUED IN
  ACCORDANCE WITH THE INTERNAL LAWS OF SAID STATE.

             SECTION 28.  Benefits of This Agreement.
                          -------------------------- 

                                      23

 
            (a) Nothing in this Agreement shall be construed to give to any
  person or corporation other than the Company, the Warrant Agent and the
  Holders of the Warrant Certificates any legal or equitable right, remedy or
  claim under this Agreement; but this Agreement shall be for the sole and
  exclusive benefit of the Company, the Warrant Agent and the Holders of the
  Warrant Certificates.

            (b) Prior to the exercise of the Warrants, no Holder of a Warrant
  Certificate, as such, shall be entitled to any rights of a stockholder of the
  Company, including, without limitation, the right to receive dividends or
  subscription rights, the right to vote, to consent, to exercise any preemptive
  right, to receive any notice of meetings of stockholders for the election of
  directors of the Company or any other matter or to receive any notice of any
  proceedings of the Company, except as may be specifically provided for herein.
  The Holders of the Warrants are not entitled to share in the assets of the
  Company in the event of the liquidation, dissolution or winding up of the
  Company's affairs.

            (c) All rights of action in respect of this Agreement are vested in
  the Holders of the Warrants, and any Holder of any Warrant, without the
  consent of the Warrant Agent or the Holder of any other Warrant, may, on such
  Holder's own behalf and for such Holder's own benefit, enforce, and may
  institute and maintain any suit, action or proceeding against the Company
  suitable to enforce, or otherwise in respect of, such Holder's rights
  hereunder, including the right to exercise, exchange or surrender for purchase
  such Holder's Warrants in the manner provided in this Agreement.

            SECTION 29.  Counterparts.  This Agreement may be executed in any
                         ------------                                        
  number of counterparts and each of such counterparts shall for all purposes be
  deemed to be an original, and all such counterparts shall together constitute
  but one and the same instrument.

                           [Signature Page Follows]

                                      24

 
            IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
  be duly executed, as of the day and year first above written.


                                HYPERION TELECOMMUNICATIONS, INC.


                                         /s/ Daniel R. Milliard
                                By: ________________________________
                                Name: Daniel R. Milliard
                                Title: President
  [Seal]



  Attest: ______________________
  Secretary

 
 

                                         /s/ Therese Gaballah
                                By: ________________________________
                                Name: Therese Gaballah
                                Title: Vice President
  [Seal]



  Attest: _______________________
  Secretary

 
                                   EXHIBIT A
                         [Form of Warrant Certificate]
                                     [Face]
            EXERCISABLE ON OR AFTER THE EXERCISABILITY DATE (AS DEFINED HEREIN).
  THE WARRANTS EVIDENCED BY THIS CERTIFICATE ARE NOT TRANSFERABLE SEPARATELY
  FROM THE SENIOR NOTES ORIGINALLY SOLD AS A UNIT WITH SUCH WARRANTS UNTIL THE
  EARLIER TO OCCUR OF (i) 90 DAYS FROM THE DATE OF ISSUANCE, (ii) SUCH DATE AS
  THE BEAR, STEARNS & CO. INC., CHASE SECURITIES INC.  AND NATIONSBANC CAPITAL
  MARKETS, INC. MAY, IN THEIR DISCRETION, DEEM APPROPRIATE, (iii) IN THE EVENT A
  CHANGE OF CONTROL (AS DEFINED IN THE INDENTURE) OCCURS, THE DATE THE COMPANY
  MAILS NOTICE THEREOF TO HOLDERS OF THE SENIOR NOTES AND (iv) THE DATE ON WHICH
  THE EXCHANGE OFFER (AS DEFINED IN THE INDENTURE) IS CONSUMMATED.

  No.
  CUSIP No. _______ 
  _______ Warrants
                              Warrant Certificate
                       HYPERION TELECOMMUNICATIONS, INC.

            This Warrant Certificate certifies that Bank of Montreal Trust
  Company or its registered assigns, is the registered holder of Warrants
  expiring April 1, 2001 (the "Warrants") to purchase Common Stock, par value
  $.01 (the "Common Stock"), of Hyperion Telecommunications, Inc., a Delaware
  corporation (the "Company").  Each Warrant entitles the registered holder upon
  exercise at any time from 9:00 a.m. on the Separation Date referred to below
  or any time on or after the earlier to occur of (i) May 1, 1997 and (ii) in
  the event a Change of Control (as defined in the Indenture) occurs, the date
  the Company mails the notice thereof to holders of Senior Notes and holders of
  Warrants (the "Exercisability Date") until 5:00 p.m. New York City Time on
  _____________ to receive from the Company 1.8645 fully paid and nonassessable
  shares of Common Stock (the "Warrant Shares") at the initial exercise price
  (the "Exercise Price") of $0.01 per share payable in lawful money of the
  United States of America upon surrender of this Warrant Certificate and
  payment of the Exercise Price at the office or agency of the Warrant Agent,
  but only subject to the conditions set forth herein and in the Warrant
  Agreement referred to on the reverse hereof.  The Exercise Price and number of
  Warrant Shares issuable upon exercise of the Warrants are subject to
  adjustment upon the occurrence of certain events set forth in the Warrant
  Agreement.

            No Warrant may be exercised before the Exercisability Date.  No
  Warrant may be exercised after 5:00 p.m., New York City Time on April 1, 2001,
  and to the extent not exercised by such time such Warrants shall become void.


                                      26

 
            Reference is hereby made to the further provisions of this Warrant
  Certificate set forth on the reverse hereof and such further provisions shall
  for all purposes have the same effect as though fully set forth at this
  place.

            This Warrant Certificate shall not be valid unless countersigned by
  the Warrant Agent, as such term is used in the Warrant Agreement.

            This Warrant Certificate shall be governed by and construed in
  accordance with the internal laws of the State of New York.

            IN WITNESS WHEREOF, Hyperion Telecommunications, Inc. has caused
  this Warrant Certificate to be signed by its President and by its Assistant
  Secretary, each by a signature or a facsimile thereof, and has caused a
  facsimile of its corporate seal to be affixed hereunto or imprinted hereon.

  Dated:

                                HYPERION TELECOMMUNICATIONS, INC.

                                By:________________________________________
                                   Name:  Daniel R. Milliard
                                   Title:  President and Secretary

                                By:________________________________________
                                   Name:  Randolph S. Fowler
                                   Title:  Vice President and Assistant
                                   Secretary


  Countersigned:


  as Warrant Agent


  By:___________________
    Authorized Signature

                                      27

 
  [Form of Warrant Certificate]
  [Reverse]

      [Unless and until it is exchanged in whole or in part for Warrants in
  definitive form, this Warrant may not be transferred except as a whole by the
  depositary to a nominee of the depositary or by a nominee of the depositary to
  the depositary or another nominee of the depositary or by the depositary or
  any such nominee to a successor depositary or a nominee of such successor
  depositary.  The Depository Trust Company ("DTC"), (55 Water Street, New York,
  New York) shall act as the depositary until a successor shall be appointed by
  the Company and the Warrant Agent.  Unless this certificate is presented by an
  authorized representative of DTC to the issuer or its agent for registration
  of transfer, exchange or payment, and any certificate issued is registered in
  the name of Cede & Co. or such other name as requested by an authorized
  representative of DTC (and any payment is made to Cede & Co. or such other
  entity as is requested by an authorized representative of DTC), ANY TRANSFER,
  PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS
  WRONGFUL inasmuch as the registered owner hereof, Cede & Co., has an interest
  herein.]*


               THE SECURITY (OR ITS PREDECESSOR) EVIDENCED HEREBY WAS ORIGINALLY
            ISSUED IN A TRANSACTION EXEMPT FROM REGISTRATION UNDER SECTION 5 OF
            THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED (THE
            "SECURITIES ACT"), AND THE SECURITY EVIDENCED HEREBY MAY NOT BE
            OFFERED, SOLD OR OTHERWISE TRANSFERRED IN THE ABSENCE OF SUCH
            REGISTRATION OR AN APPLICABLE EXEMPTION THEREFROM. EACH PURCHASER OF
            THE SECURITY EVIDENCED HEREBY IS HEREBY NOTIFIED THAT THE SELLER MAY
            BE RELYING ON THE EXEMPTION FROM THE PROVISIONS OF SECTION 5 OF THE
            SECURITIES ACT PROVIDED BY RULE 144A THEREUNDER.  BY ITS ACQUISITION
            HEREOF, THE HOLDER (1) REPRESENTS THAT (A) IT IS A "QUALIFIED
            INSTITUTIONAL BUYER" (AS DEFINED IN RULE 144A UNDER THE SECURITIES
            ACT) OR (B) IT IS AN INSTITUTIONAL "ACCREDITED INVESTOR" (AS DEFINED
            IN RULE 501(A)(1), (2), (3) OR (7) UNDER THE SECURITIES ACT) (AN
            "INSTITUTIONAL ACCREDITED INVESTOR").  THE HOLDER OF THE SECURITY
            EVIDENCED HEREBY AGREES FOR THE BENEFIT OF THE COMPANY THAT (Y) SUCH
            SECURITY MAY BE RESOLD, PLEDGED OR OTHERWISE TRANSFERRED, ONLY
            (1)(a) TO A PERSON WHO THE SELLER REASONABLY BELIEVES IS A
            "QUALIFIED INSTITUTIONAL BUYER" (AS DEFINED IN RULE 144A UNDER THE
            SECURITIES ACT), IN A TRANSACTION MEETING THE

_______________
* This paragraph is to be included only if the Warrant is in global
  form.

                                      28

 
            REQUIREMENTS OF RULE 144A, (b) IN A TRANSACTION MEETING THE
            REQUIREMENTS OF RULE 144 COUNSEL IF THE COMPANY SO REQUESTS), (2) TO
            THE COMPANY, (3) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT
            UNDER THE SECURITIES ACT AND, IN EACH CASE, IN ACCORDANCE WITH ANY
            APPLICABLE SECURITIES LAWS OF ANY STATE OF THE UNITED STATES OR ANY
            OTHER APPLICABLE JURISDICTION AND (Z) IT WILL NOTIFY ANY PURCHASER
            OF THE SECURITY EVIDENCED HEREBY, PRIOR TO CLOSING OF ANY SALE, OF
            THE RESALE RESTRICTIONS SET FORTH IN (Y) ABOVE.

      The Warrants evidenced by this Warrant Certificate are part of a duly
  authorized issue of Warrants expiring April 1, 2001 entitling the holder on
  exercise to receive shares of Common Stock, par value $.0l, of the Company
  (the "Common Stock"), and are issued or to be issued pursuant to a Warrant
  Agreement dated as of April 15, 1996 (the "Warrant Agreement"), duly executed
  and delivered by the Company to Bank of Montreal Trust Company, as warrant
  agent (the "Warrant Agent"), which Warrant Agreement is hereby incorporated by
  reference in and made a part of this instrument and is hereby referred to for
  a description of the rights, limitation of rights, obligations, duties and
  immunities thereunder of the Warrant Agent, the Company and the holders (the
  words "holders" or "holder" meaning the registered holders or registered
  holder) of the Warrants.  A copy of the Warrant Agreement may be obtained by
  the holder hereof upon written request to the Company.  Capitalized terms used
  herein without definition shall have the meanings ascribed to them in the
  Warrant Agreement.

      Warrants may be exercised at any time from 9:00 a.m. on or after the
  Exercisability Date and until 5:00 p.m., New York City Time on April 1, 2001.
  The holder of Warrants evidenced by this Warrant Certificate may exercise them
  by surrendering this Warrant Certificate, with the form of election to
  purchase set forth hereon properly completed and executed, together with
  payment of the Exercise Price in lawful money of the United States of America
  at the office of the Warrant Agent.  In the event that upon any exercise of
  Warrants evidenced hereby the number of Warrants exercised shall be less than
  the total number of Warrants evidenced hereby, there shall be issued to the
  holder hereof or his assignee a new Warrant Certificate evidencing the number
  of Warrants not exercised.  No adjustment shall be made for any dividends on
  any Common Stock issuable upon exercise of this Warrant.

      The Warrant Agreement provides that upon the occurrence of certain events
  the Exercise Price set forth on the face hereof and/or the number of shares of
  Common Stock issuable upon the exercise of each Warrant shall, subject to
  certain conditions, be adjusted. No fractions of a share of Common Stock will
  be issued upon the exercise of any Warrant, but the Company will pay the cash
  value thereof determined as provided in the Warrant Agreement.

                                      29

 
      The Warrant Agreement provides that the Company shall be bound by certain
  registration obligations with respect to the Common Stock issuable upon
  exercise of the Warrants.

      Warrant Certificates, when surrendered at the office of the Warrant Agent
  by the registered holder thereof in person or by legal representative or
  attorney duly authorized in writing, may be exchanged, in the manner and
  subject to the limitations provided in the Warrant Agreement, but without
  payment of any service charge, for another Warrant Certificate or Warrant
  Certificates of like tenor evidencing in the aggregate a like number of
  Warrants.

      Upon due presentation for registration of transfer of this Warrant
  Certificate at the office of the Warrant Agent a new Warrant Certificate or
  Warrant Certificates of like tenor and evidencing in the aggregate a like
  number of Warrants shall be issued to the transferee(s) in exchange for this
  Warrant Certificate, subject to the limitations provided in the Warrant
  Agreement, without charge except for any tax or other governmental charge
  imposed in connection therewith.

      The Company and the Warrant Agent may deem and treat the registered
  holder(s) thereof as the absolute owner(s) of this Warrant Certificate
  (notwithstanding any notation of ownership or other writing hereon made by
  anyone), for the purpose of any exercise hereof, of any distribution to the
  holder(s) hereof, and for all other purposes, and neither the Company nor the
  Warrant Agent shall be affected by any notice to the contrary. Neither the
  Warrants nor this Warrant Certificate entitles any holder hereof to any rights
  of a stockholder of the Company.

                                      30

 
                         [Form of Election to Purchase]
                   (To Be Executed Upon Exercise Of Warrant)

   The undersigned hereby irrevocably elects to exercise the right, represented
 by this Warrant Certificate, to receive ________ shares of Common Stock and
 herewith tenders   payment for such shares to the order of HYPERION
 TELECOMMUNICATIONS, INC., in   the amount of $_________ in accordance with the
 terms hereof.  The undersigned requests   that a certificate for such shares be
 registered in the name of _______________________,   whose address is
 ______________________, and that such shares be delivered to
 _________________, whose address is ____________________________.  If said
 number of   shares is less than all of the shares of Common Stock purchasable
 hereunder, the undersigned   requests that a new Warrant Certificate
 representing the remaining balance of such shares be registered in the name of
 _____________________________, whose address is ________________________, and
 that such Warrant Certificate be delivered to _____________________________,
 whose address is ____________________________.



                                        
                                                        Signature



                                     Date:



                                        
                                                 Signature Guaranteed


                                      31

 
                SCHEDULE OF EXCHANGES OF DEFINITIVE WARRANTS/1/
                -----------------------------------------------


  The following exchanges of a part of this Global Warrant for definitive
  Warrants have been made:




                                                                 Number of
                    Amount of decrease  Amount of increase    Warrants in this
                       in Number of        in Number of        Global Warrant         Signature of
                     Warrants in this    Warrants in this      following such     authorized officer of
 Date of Exchange     Global Warrant      Global Warrant    decrease or increase      Warrant Agent
- -------------------------------------------------------------------------------------------------------
                                                                      



______________
/1/ This is to be included only if the Warrant is in global form.

                                      32

 
                                   EXHIBIT B
   CERTIFICATE TO BE DELIVERED UPON EXCHANGE OR REGISTRATION OF TRANSFER OF
                                    WARRANTS
   Re: _____ Warrants to Purchase Common Stock (the "Warrants") of HYPERION
                            TELECOMMUNICATIONS, INC.
  This Certificate relates to _____ Warrants held in * _______ book-entry or *
           _______ definitive form by __________ (the "Transferor").

                                The Transferor*:

[_] has requested the Warrant Agent by written order to deliver in exchange for
    its beneficial interest in the Global Warrants held by the depositary a
  Warrant or Warrants in   definitive, registered form equal to its beneficial
interest in such Global Warrant (or the   portion thereof indicated above); or

[_] has requested the Warrant Agent by written order to exchange or register the
                       transfer of a Warrant or Warrants

    In connection with such request and in respect of each such Warrant, the
   Transferor   does hereby certify that the Transferor is familiar with the
   Warrant Agreement relating to the   above captioned Warrants and that the
 transfer of this Warrant does not require registration   under the Securities
            Act of 1933, as amended (the "Securities Act") because:

[_]  Such Warrant is being acquired for the Transferor's own account without
     transfer (in   satisfaction of Section 7 of the Warrant Agreement).

   Such Warrant is being transferred (i) to a qualified institutional buyer
  (as defined in Rule 144A under the Securities Act), in reliance on Rule 144A.

[_]  Such Warrant is being transferred (i) in accordance with Rule 144 under the
 Securities Act (and based on an opinion of counsel if the Company so requests)
 or (ii)   pursuant to an effective registration statement under the Securities
                                     Act.

[_]  Such Warrant is being transferred to an institutional accredited investor
within the   meaning of Rule 501(a)(1), (2), (3) or (7) under the Securities Act
 pursuant to a private   placement exemption from the registration requirements
           of the Securities Act (together with a   certification).

                                        
                            *Check applicable box.

                                      1

 
[_] Such Warrant is being transferred in reliance on and in compliance with
    another exemption from the registration requirements of the Securities
    Act (and based on an opinion of counsel if the Company so requests).

                                                    [INSERT NAME OF TRANSFEROR]

                                                       By:
                                     Date:



                                        
                            *Check applicable box.

                                      2

 
                                   EXHIBIT B
   CERTIFICATE TO BE DELIVERED UPON EXCHANGE OR REGISTRATION OF TRANSFER OF
                                    WARRANTS
   Re: _____ Warrants to Purchase Common Stock (the "Warrants") of HYPERION
                            TELECOMMUNICATIONS, INC.
  This Certificate relates to _____ Warrants held in * _______ book-entry or *
           _______ definitive form by __________ (the "Transferor").

                                The Transferor*:

[_] has requested the Warrant Agent by written order to deliver in exchange for
   its   beneficial interest in the Global Warrants held by the depositary a
  Warrant or Warrants in   definitive, registered form equal to its beneficial
interest in such Global Warrant (or the   portion thereof indicated above); or

[_] has requested the Warrant Agent by written order to exchange or register the
                       transfer of a Warrant or Warrants

     In connection with such request and in respect of each such Warrant, the
   Transferor   does hereby certify that the Transferor is familiar with the
   Warrant Agreement relating to the   above captioned Warrants and that the
 transfer of this Warrant does not require registration   under the Securities
            Act of 1933, as amended (the "Securities Act") because:

[_] Such Warrant is being acquired for the Transferor's own account without
    transfer (in   satisfaction of Section 7 of the Warrant Agreement).

[_] Such Warrant is being transferred (i) to a qualified institutional buyer (as
  defined in   Rule 144A under the Securities Act), in reliance on Rule 144A.

[_] Such Warrant is being transferred (i) in accordance with Rule 144 under the
 Securities Act (and based on an opinion of counsel if the Company so requests)
 or (ii)   pursuant to an effective registration statement under the Securities
                                     Act.

[_] Such Warrant is being transferred to an institutional accredited investor
within the   meaning of Rule 501(a)(1), (2), (3) or (7) under the Securities Act
 pursuant to a private   placement exemption from the registration requirements
           of the Securities Act (together with a   certification).

                                        
                            *Check applicable box.

                                      1

 
[_] Such Warrant is being transferred in reliance on and in compliance with
another exemption from the registration requirements of the Securities Act (and
based on an opinion of counsel if the Company so requests).

                                                    [INSERT NAME OF TRANSFEROR]

                                                        By:
                                                        Date:



                                        
                            *Check applicable box.

                                      2