EXHIBIT 4.3



                           CERTIFICATE OF DESIGNATIONS


               SERIES G 6% CUMULATIVE CONVERTIBLE PREFERRED STOCK

                        SERIES H SPECIAL PREFERRED STOCK

               SERIES I 6% CUMULATIVE CONVERTIBLE PREFERRED STOCK

                        SERIES J SPECIAL PREFERRED STOCK

                                       OF

                            SHARED TECHNOLOGIES INC.


         SHARED  TECHNOLOGIES  INC.,  a  Delaware  corporation,  certifies  that
pursuant to the authority expressly granted to the Board of Directors in Article
FOURTH of the Corporation's Restated Certificate of Incorporation,  the Board of
Directors of the Corporation duly adopted the following resolution creating four
series of  Preferred  Stock  designated  as Series G 6%  Cumulative  Convertible
Preferred  Stock,  Series H  Special  Preferred  Stock,  Series I 6%  Cumulative
Convertible Preferred Stock and Series J Special Preferred Stock:

         RESOLVED:         That this  Corporation  create and authorize  250,000
                           shares   of  Series  G  6%   Cumulative   Convertible
                           Preferred  Stock  and  200,000  shares  of  Series  H
                           Special Preferred Stock, each with the terms,  rights
                           and  preferences  as set forth in the  Designation of
                           Rights and Preferences,  attached hereto as Exhibit A
                           and Exhibit B, respectively, and made a part of these
                           resolutions,  and to be issued in accordance with the
                           provisions of the Merger Agreement;

         RESOLVED:         That this  Corporation  create  and  authorize  up to
                           250,000 shares of Series I 6% Cumulative  Convertible
                           Preferred  Stock  and  200,000  shares  of  Series  J
                           Special Preferred Stock, each with the terms,  rights
                           and  preferences  as set forth in the  Designation of
                           Rights and Preferences,  attached hereto as Exhibit C
                           and Exhibit D, respectively, and made a part of these
                           resolutions,  and to be issued in accordance with the
                           provisions of the Exchange Agreement;

         RESOLVED:         That in connection  with the  foregoing  resolutions,
                           each of the Chief  Executive  Officer and  President,
                           the  Chief  Financial  Officer,  Treasurer,  any Vice
                           President and Secretary of this  Corporation  be, and
                           each hereby is,  authorized and directed,  for and on
                           behalf of this  Corporation,  to file such documents,
                           including,  but not  limited to, the  Designation  of
                           Rights and Preferences  annexed hereto as 




                           Exhibits A, B, C  and  D as are  necessary  with  the
                           Secretary  of State of Delaware.

         IN WITNESS  WHEREOF,  said  SHARED  TECHNOLOGIES  INC.  has caused this
Certificate of Designations of its Series G 6% Cumulative  Convertible Preferred
Stock,  Series H Special  Preferred  Stock,  Series I 6% Cumulative  Convertible
Preferred Stock and Series J Special  Preferred Stock to be duly executed by its
Senior  Vice  President  and  attested  to by its  Secretary  and has caused its
corporation seal to be affixed hereto as of the 8th day of March, 1996.


                                                     SHARED TECHNOLOGIES INC.


                                                     By:/s/ Vincent DiVincenzo
                                                        Vincent DiVincenzo,
                                                        Senior Vice President

(Corporation Seal)

ATTEST:


/s/ Kenneth M. Dorros
Kenneth M. Dorros, Secretary

                                       2


                                                                   New Preferred

Designation of Series I 6% Cumulative Convertible
Preferred Stock


                  1. Designation; Rank. The series of Preferred Stock designated
and known as "Cumulative Series I 6% Convertible  Preferred Stock" shall consist
of 250,000  shares,  par value $.01 per share and shall herein be referred to as
the  "Cumulative   Convertible   Preferred  Stock".  Shares  of  the  Cumulative
Convertible Preferred Stock shall, with respect to dividend rights and rights on
liquidation,  winding up and  dissolution,  rank senior to all classes of common
stock of the Corporation (including,  without limitation,  the Common Stock, par
value  $.004 per share (the  "Common  Stock")),  and each other class of capital
stock or series of preferred  stock  hereafter  created which does not expressly
provide  that it ranks on a parity  with the  Cumulative  Convertible  Preferred
Stock  as  to  dividend  rights  and  rights  on  liquidation,  winding  up  and
dissolution  ("Junior  Stock"),  on a parity with the Series D Preferred  Stock,
Special  Preferred  Stock and each  other  class of  capital  stock or series of
preferred  stock hereafter  created which expressly  provides that it ranks on a
parity with the Cumulative Convertible Preferred Stock as to dividend rights and
rights on liquidation,  winding up and dissolution ("Parity Stock"), and, junior
to the Series C Preferred  Stock and each other class of capital stock or series
of preferred stock  hereafter  created which has been approved by the holders of
the  Cumulative  Convertible  Preferred  Stock in accordance  with Section 4 and
which  expressly  provides  that it ranks senior to the  Cumulative  Convertible
Preferred Stock as to dividend rights and rights on liquidation,  winding up and
dissolution ("Senior Stock").

                  2.       Dividends.

                  (a) The holders of the Cumulative  Convertible Preferred Stock
shall be entitled  to  receive,  out of any funds  legally  available  therefor,
dividends  in cash at the annual rate of 6% of the  Liquidation  Preference  (as
hereinafter  defined) thereof,  in equal quarterly  payments in arrears on March
31,  June 30,  September  30 and  December  31 in each year  (each  such date is
referred to as a "Dividend Payment Date") commencing on March 31, 1996,  payable
in  preference  and  priority to any payment of any cash  dividend on any Junior
Stock,  junior in preference and priority to any payment of any cash dividend on
any Senior  Stock and on a parity with any  payment of any cash  dividend on any
Parity Stock. Such dividends shall be paid to the holders of record at the close
of business on the date  specified by the Board of Directors of the  Corporation
at the time such dividend is declared. If the Dividend Payment





                                       -2-


Date is not a  business  day,  the  Dividend  Payment  Date  shall  be the  next
succeeding business day.

                  (b)  Each  of  such   quarterly   dividends   shall  be  fully
cumulative,  whether  or not  earned  or  declared,  and  shall  accrue  without
interest,  from the first  day of the  quarter  in which  such  dividend  may be
payable as herein  provided  until the  applicable  Dividend  Payment  Date with
respect thereto (except that with respect to the first quarterly dividend,  such
dividend  shall accrue from March 13, 1996).  In addition,  if not fully paid in
cash on such Dividend  Payment Date, each such dividend shall accrue interest at
an annual rate of 12% thereof  from such  Dividend  Payment  Date until the date
fully paid in cash.

                  (c) In the event that the Corporation  shall have  cumulative,
accrued  and unpaid  dividends  outstanding  (including  any  interest  accruing
thereon  as  herein  provided)  immediately  prior  to  and in  the  event  of a
conversion of any shares of Cumulative  Convertible  Preferred Stock as provided
in Section 5 hereof,  the Corporation shall, at the option of the holder of such
shares,  pay in cash to such  holder  the  full  amount  of any  such  dividends
(including  any  interest  accruing  thereon as herein  provided)  or allow such
dividends  (including any interest  accruing  thereon as herein  provided) to be
converted  into  Common  Stock in  accordance  with,  and  pursuant to the terms
specified in, Section 5 hereof.

                  3.       Liquidation, Dissolution or Winding Up.

                  (a) In the event of any voluntary or involuntary  liquidation,
dissolution  or  winding  up of  the  Corporation,  the  holders  of  shares  of
Cumulative  Convertible Preferred Stock then outstanding shall be entitled to be
paid out of the assets of the  Corporation  available  for  distribution  to its
stockholders,  after and subject to the payment in full of all amounts  required
to be  distributed  to the  holders of any Senior  Stock but before any  payment
shall be made to the  holders  of any  Junior  Stock,  and on a parity  with any
payment  to the  holders  of Parity  Stock,  an  amount  equal to $100 per share
(subject to  appropriate  adjustment in the event of any stock  dividend,  stock
split, combination or other similar recapitalization affecting such shares) (the
"Liquidation  Preference")  plus with respect to any date, an additional  amount
(the  "Additional  Amount")  equal to the total  amount of dividends a holder of
such share of Cumulative  Convertible  Preferred  Stock would have received from
the original issue date of such share of Cumulative  Convertible Preferred Stock
until such date, if dividends were paid quarterly in cash as herein  provided at
the rate of 10% per annum minus the total amount of cash dividends actually paid
on such share of Cumulative Convertible Preferred





                                       -3-


Stock without  giving effect to any accrued and paid interest on such  dividends
as herein provided.  If upon any such liquidation,  dissolution or winding up of
the  Corporation  the  remaining   assets  of  the  Corporation   available  for
distribution  to its  stockholders  shall be  insufficient to pay the holders of
shares of Cumulative  Convertible  Preferred Stock the full amount to which they
shall be entitled,  the holders of Cumulative  Convertible Preferred Stock shall
share  ratably  in any  distribution  of the  remaining  assets and funds of the
Corporation  in proportion to the  respective  amounts which would  otherwise be
payable  in respect of the  shares  held by them upon such  distribution  if all
amounts payable on or with respect to such shares were paid in full.

                  (b) After the payment of all preferential  amounts required to
be paid to the holders of Senior Stock, Parity Stock and Cumulative  Convertible
Preferred  Stock  upon  the  dissolution,  liquidation  or  winding  up  of  the
Corporation,  the holders of shares of Junior  Stock then  outstanding  shall be
entitled to receive the remaining assets and funds of the Corporation  available
for distribution to its stockholders.

                  (c) Written notice of such liquidation, dissolution or winding
up, stating a payment date and the place where said payment shall be made, shall
be given by mail, postage prepaid, or by telecopier, not less than 20 days prior
to the payment date stated  therein,  to the holders of record of the Cumulative
Convertible  Preferred Stock, such notice to be addressed to each such holder at
its address as shown by the records of the Corporation.

                  (d) Whenever the  distribution  provided for in this Section 3
shall be payable in  property  other than cash,  the value of such  distribution
shall be the fair market value of such  property as  determined in good faith by
the Board of Directors of the Corporation.

                  (e) For the purposes of this Section 3, neither the  voluntary
sale, conveyance, exchange or transfer (for cash, shares of stock, securities or
other  consideration)  of all or substantially  all of the property or assets of
the Corporation nor the  consolidation  or merger of the Corporation with one or
more other  corporations  shall be deemed to be a  liquidation,  dissolution  or
winding up,  voluntary or involuntary,  unless such voluntary sale,  conveyance,
exchange  or  transfer  shall  be in  connection  with  a plan  of  liquidation,
dissolution or winding up of the business of the Corporation.





                                       -4-


                  4.       Voting.

                  (a) Except as may be otherwise  provided in these terms of the
Cumulative  Convertible  Preferred  Stock or by law, the Cumulative  Convertible
Preferred Stock shall not be entitled to vote.

                  (b) The  Corporation  shall not  amend,  alter or  repeal  the
preferences,  special  rights  or other  powers  of the  Cumulative  Convertible
Preferred Stock so as to affect adversely the Cumulative  Convertible  Preferred
Stock,  without the  written  consent or  affirmative  vote of the holders of at
least  two-thirds  of the then  outstanding  shares  of  Cumulative  Convertible
Preferred Stock, given in writing or by vote at a meeting,  consenting or voting
(as the case may be) separately as a class.  For this purpose,  without limiting
the generality of the foregoing,  the authorization or issuance of any series of
Preferred  Stock with  preference  or priority over the  Cumulative  Convertible
Preferred  Stock  as to  the  right  to  receive  either  dividends  or  amounts
distributable  upon  liquidation,  dissolution or winding up of the  Corporation
shall be deemed to affect adversely the Cumulative  Convertible Preferred Stock,
and the  authorization  or issuance of any series of Preferred Stock on a parity
with the  Cumulative  Convertible  Preferred  Stock as to the  right to  receive
either  dividends or amounts  distributable  upon  liquidation,  dissolution  or
winding  up of the  Corporation  shall be  deemed  not to affect  adversely  the
Cumulative Convertible Preferred Stock.

                  (c) In the event  that the  Corporation  shall fail to declare
and pay in full dividends on the Cumulative  Convertible  Preferred Stock as set
forth in Section 2(a) hereof on four consecutive Dividend Payment Dates then the
number of directors  constituting  the Board of Directors  shall be increased by
one director and the holders of shares of the Cumulative  Convertible  Preferred
Stock, in addition to any other rights that they may otherwise have,  shall have
the exclusive right, voting separately as a class, to elect such one director of
the Corporation.

                  (d) In  addition  to the  rights  specified  in the  foregoing
Section 4(c), in the event that the Corporation shall fail to declare and pay in
full dividends on the  Cumulative  Convertible  Preferred  Stock as set forth in
Section 2(a) hereof on eight consecutive Dividend Payment Dates, then the number
of  directors  constituting  the Board of  Directors  shall be  increased  by an
additional one director and the holders of shares of the Cumulative  Convertible
Preferred  Stock,  in addition to any other rights that they may otherwise have,
shall have the exclusive  right,  voting  separately  as a class,  to elect such
additional one director of





                                       -5-


the  Corporation  (in addition to the additional  director  elected  pursuant to
Section 4(c)).

                  (e) Any voting  right  pursuant to Section  4(c) or (d) may be
exercised  initially  either by written  consent or at a special  meeting of the
holders of the Cumulative  Convertible  Preferred  Stock,  called as hereinafter
provided,  or at any annual  meeting  of  stockholders  held for the  purpose of
electing  directors,  and thereafter at each such annual meeting until such time
as all  dividends  accumulated  on the  shares  of  the  Cumulative  Convertible
Preferred  Stock shall have been paid in full,  at which time such voting  right
and the term of any director  elected pursuant to this Section 4 shall terminate
and the number of directors  constituting  the full Board of Directors  shall be
reduced accordingly.

                  (f) At any time  when the  voting  right  specified  in either
Section  4(c) or (d) shall have  vested in  holders of shares of the  Cumulative
Convertible  Preferred  Stock as  described  in such Section 4(c) or (d), as the
case may be, and if such right shall not already have been  exercised by written
consent,  a proper officer of the  Corporation  may call,  and, upon the written
request, addressed to the Secretary of the Corporation, of the record holders of
shares  representing  twenty-five  percent (25%) or more of the then outstanding
shares of Cumulative  Convertible Preferred Stock, shall call, a special meeting
of the holders of the Cumulative Convertible Preferred Stock. Such meeting shall
be held at the  earliest  practicable  date upon the notice  required for annual
meetings  of   stockholders   at  the  place  for  holding  annual  meetings  of
stockholders  of the  Corporation,  or,  if none,  at a place  in New York  City
designated by the Board of Directors.

                  (g) At any meeting held for the purpose of electing  directors
at which the holders of shares of Cumulative  Convertible  Preferred Stock shall
have the right to elect a director as provided herein, the presence in person or
by proxy of the holders of shares  representing more than fifty percent (50%) of
the then outstanding shares of Cumulative  Convertible  Preferred Stock shall be
required and shall be  sufficient  to  constitute a quorum of such class for the
election of directors by such class.

                  (h) Any director elected by holders of Cumulative  Convertible
Preferred  Stock pursuant to the voting right created under this Section 4 shall
hold office until the next annual meeting of stockholders  (unless such term has
previously  terminated  pursuant to Section  4(e)) and any vacancy in respect of
any such director shall be filled only by vote of the holders of such Cumulative
Convertible  Preferred  Stock entitled to elect such director by written consent
or at a special meeting called in





                                       -6-


accordance with the procedures set forth in Section 4(f), or, if no such special
meeting is called or written  consent  executed,  at the next annual  meeting of
stockholders.  Upon any termination of such voting right,  subject to applicable
law,  the term of  office of the  director  elected  by  holders  of  Cumulative
Convertible  Preferred  Stock  voting  separately  as a class  pursuant  to this
Section 4 shall terminate.

                  (i)      In exercising the voting rights set forth in this
Section 4, each share of Cumulative Convertible Preferred Stock
shall have one vote.

                  5.       Optional Conversion.  The  holders  of the Cumulative
Convertible  Preferred  Stock  shall  have  conversion  rights  as  follows (the
"Conversion Rights"):

                  (a) Right to  Convert.  Each share of  Cumulative  Convertible
Preferred  Stock shall be convertible,  at the option of the holder thereof,  at
any time and from time to time, into such number of fully paid and nonassessable
shares of  Common  Stock as is  determined  by  dividing  (A) the sum of (x) the
Liquidation  Preference thereof and (y) the Additional Amount thereof by (B) the
Conversion  Price  (as  defined  below)  in  effect  at the time of  conversion;
provided,  that the  Company  may, at its  option,  elect to pay the  Additional
Amount in cash in lieu of shares of Common Stock at the time of conversion.  The
conversion  price at which  shares of Common  Stock  shall be  deliverable  upon
conversion  of  Cumulative  Convertible  Preferred  Stock without the payment of
additional  consideration by the holder thereof (the  "Conversion  Price") shall
initially  be $6.3750.  Such  initial  Conversion  Price,  and the rate at which
shares of Cumulative Convertible Preferred Stock may be converted into shares of
Common Stock, shall be subject to adjustment as provided below.

                  In the  event of a  notice  of  redemption  of any  shares  of
Cumulative  Convertible  Preferred  Stock  pursuant  to  Section 6  hereof,  the
Conversion Rights of the shares designated for redemption shall terminate at the
close of business on the fifth full day preceding the date fixed for redemption,
unless the  redemption  price is not paid when due, in which case the Conversion
Rights for such shares shall  continue  until such price is paid in full. In the
event of a liquidation of the Corporation, the Conversion Rights shall terminate
at the close of business on the first full day  preceding the date fixed for the
payment of any amounts distributable on liquidation to the holders of Cumulative
Convertible Preferred Stock.





                                       -7-


                  (b) Fractional  Shares.  No fractional  shares of Common Stock
shall be issued upon conversion of the Cumulative  Convertible  Preferred Stock.
In lieu of any  fractional  shares  to  which  the  holder  would  otherwise  be
entitled,  the Corporation  shall pay cash equal to such fraction  multiplied by
the then effective Conversion Price.

                  (c)      Mechanics of Conversion.

                    (i)  In  order  for  a  holder  of  Cumulative   Convertible
         Preferred Stock to convert shares of Cumulative  Convertible  Preferred
         Stock into shares of Common  Stock,  such holder  shall  surrender  the
         certificate or certificates  for such shares of Cumulative  Convertible
         Preferred  Stock at the office of the transfer agent for the Cumulative
         Convertible  Preferred  Stock  (or  at  the  principal  office  of  the
         Corporation  if the  Corporation  serves  as its own  transfer  agent),
         together with written  notice that such holder elects to convert all or
         any number of the shares of the Cumulative  Convertible Preferred Stock
         represented  by such  certificate  or  certificates.  Such notice shall
         state such  holder's  name or the names of the  nominees  in which such
         holder  wishes the  certificate  or  certificates  for shares of Common
         Stock  to be  issued.  If  required  by the  Corporation,  certificates
         surrendered  for  conversion  shall be  endorsed  or  accompanied  by a
         written  instrument or instruments of transfer,  in a form satisfactory
         to the  Corporation,  duly executed by the registered  holder or his or
         its attorney duly  authorized  in writing.  The date of receipt of such
         certificates and notice by the transfer agent (or by the Corporation if
         the  Corporation  serves  as  its  own  transfer  agent)  shall  be the
         conversion date ("Conversion  Date"). The Corporation shall, as soon as
         practicable after the Conversion Date, issue and deliver at such office
         to such holder of Cumulative  Convertible Preferred Stock, or to his or
         its nominees, a certificate or certificates for the number of shares of
         Common Stock to which such holder shall be entitled, together with cash
         in lieu of any fraction of a share,  and in the case of the  conversion
         of less than all of the shares of the Cumulative  Convertible Preferred
         Stock represented by a certificate, a new certificate for the number of
         shares of Cumulative Convertible Preferred Stock not so converted.

                   (ii) The  Corporation  shall at all times when the Cumulative
         Convertible  Preferred  Stock  shall be  outstanding,  reserve and keep
         available out of its authorized but unissued stock,  for the purpose of
         effecting the conversion of the Cumulative Convertible Preferred Stock,
         such number of its duly authorized shares of Common Stock as shall from
         time to





                                       -8-


         time  be  sufficient  to  effect  the  conversion  of  all  outstanding
         Cumulative  Convertible Preferred Stock. Before taking any action which
         would cause an adjustment  reducing the Conversion Price below the then
         par value of the shares of Common Stock issuable upon conversion of the
         Cumulative  Convertible  Preferred Stock, the Corporation will take any
         corporate action which may, in the opinion of its counsel, be necessary
         in order that the  Corporation may validly and legally issue fully paid
         and  nonassessable  shares of Common Stock at such adjusted  Conversion
         Price.

                  (iii) All shares of  Cumulative  Convertible  Preferred  Stock
         which shall have been  surrendered  for  conversion as herein  provided
         shall no longer be deemed to be outstanding and all rights with respect
         to such shares, including the rights, if any, to receive notices and to
         vote,  shall  immediately  cease and terminate on the Conversion  Date,
         except  only the right of the  holders  thereof  to  receive  shares of
         Common Stock in exchange therefor and payment of any accrued and unpaid
         dividends thereon. Any shares of Cumulative Convertible Preferred Stock
         so converted  shall be retired and cancelled and shall not be reissued,
         and the Corporation may from time to time take such appropriate  action
         as may be necessary  to reduce the  authorized  Cumulative  Convertible
         Preferred Stock accordingly.

                  (d)  Adjustment  for Stock  Splits  and  Combinations.  If the
Corporation shall at any time or from time to time after the Original Issue Date
effect a subdivision of the outstanding  Common Stock, the Conversion Price then
in  effect   immediately   before  that  subdivision  shall  be  proportionately
decreased.  If the Corporation  shall at any time or from time to time after the
Original  Issue  Date  combine  the  outstanding  shares  of Common  Stock,  the
Conversion  Price then in effect  immediately  before the  combination  shall be
proportionately  increased.  Any adjustment  under this  paragraph  shall become
effective at the close of business on the date the  subdivision  or  combination
becomes effective.

                  (e) Adjustment for Certain Dividends and Distributions. In the
event the  Corporation  at any time,  or from time to time,  after the  Original
Issue Date shall make or issue,  or fix a record date for the  determination  of
holders of Common Stock  entitled to receive,  a dividend or other  distribution
payable in additional  shares of Common  Stock,  then and in each such event the
Conversion Price for the Cumulative  Convertible  Preferred Stock then in effect
shall be  decreased  as of the time of such  issuance  or, in the  event  such a
record date shall have been fixed, as of the close of





                                       -9-


business on such record date, by multiplying the Conversion Price then in effect
by a fraction:

                    (i) the  numerator  of which  shall be the  total  number of
         shares of Common Stock issued and outstanding  immediately prior to the
         time of such issuance or the close of business on such record date; and

                   (ii) the  denominator  of which shall be the total  number of
         shares of Common Stock issued and outstanding  immediately prior to the
         time of such issuance or the close of business on such record date plus
         the  number of  shares of Common  Stock  issuable  in  payment  of such
         dividend or distribution;  provided, however, if such record date shall
         have  been  fixed  and  such  dividend  is not  fully  paid  or if such
         distribution  is  not  fully  made  on the  date  fixed  therefor,  the
         Conversion  Price shall be  recomputed  accordingly  as of the close of
         business on such record date and thereafter the Conversion  Price shall
         be adjusted pursuant to this paragraph as of the time of actual payment
         of such dividends or distributions.

                  (f) Adjustments for Other Dividends and Distributions.  In the
event the  Corporation at any time or from time to time after the Original Issue
Date shall make or issue, or fix a record date for the  determination of holders
of Common Stock entitled to receive, a dividend or other distribution payable in
property of the Corporation or securities of the  Corporation  other than shares
of Common Stock, then and in each such event provision shall be made so that the
holders  of the  Cumulative  Convertible  Preferred  Stock  shall  receive  upon
conversion  thereof  in  addition  to the  number  of  shares  of  Common  Stock
receivable thereupon, the amount and type of such property and securities of the
Corporation  that they  would have  received  had their  Cumulative  Convertible
Preferred  Stock been converted into Common Stock on the date of such event and,
with  respect  to any  such  securities  receivable  by them as  aforesaid,  had
thereafter,  during the period from the date of such event to and  including the
conversion date,  retained such securities during such period giving application
to all  adjustments  called for during such  period  under this  paragraph  with
respect to the rights of the  holders of the  Cumulative  Convertible  Preferred
Stock.

                  (g) Adjustment for Reclassification, Exchange or Substitution.
If the Common Stock issuable upon the  conversion of the Cumulative  Convertible
Preferred  Stock shall be changed into the same or a different  number of shares
of  any  class  or  classes  of  stock,   whether  by  capital   reorganization,
reclassification,  or otherwise  (other than a  subdivision  or  combination  of
shares or





                                      -10-


stock dividend provided for above, or a reorganization,  merger,  consolidation,
or sale of assets provided for below), then and in each such event the holder of
each such share of Cumulative  Convertible  Preferred Stock shall have the right
thereafter to convert such share into the kind and amount of shares of stock and
other   securities   and   property   receivable   upon   such   reorganization,
reclassification,  or other change, by holders of the number of shares of Common
Stock into which such shares of  Cumulative  Convertible  Preferred  Stock might
have been converted immediately prior to such reorganization,  reclassification,
or change, all subject to further adjustment as provided herein.

                  (h) Adjustment for Merger or  Reorganization,  etc. In case of
any consolidation or merger of the Corporation with or into another  corporation
or the sale of all or  substantially  all of the  assets of the  Corporation  to
another corporation (other than a consolidation, merger or sale which is treated
as as a  liquidation  pursuant  to  Section  3(a)),  each  share  of  Cumulative
Convertible  Preferred Stock shall  thereafter be convertible  into the kind and
amount of shares of stock or other  securities  or property to which a holder of
the  number  of  shares  of Common  Stock of the  Corporation  deliverable  upon
conversion  of such  Cumulative  Convertible  Preferred  Stock  would  have been
entitled upon such consolidation, merger or sale; and, in such case, appropriate
adjustment (as determined in good faith by the Board of Directors) shall be made
in the application of the provisions in this Section 5 set forth with respect to
the rights and interests thereafter of the holders of the Cumulative Convertible
Preferred  Stock,  to the end that the  provisions  set forth in this  Section 5
(including  provisions  with respect to changes in and other  adjustments of the
Conversion  Price) shall  thereafter be applicable,  as nearly as reasonably may
be, in relation to any shares of stock or other property thereafter  deliverable
upon the conversion of the Cumulative Convertible Preferred Stock.

                  (i) No Impairment.  The Corporation  will not, by amendment of
its  Certificate of  Incorporation  or through any  reorganization,  transfer of
assets, consolidation,  merger, dissolution,  issue or sale of securities or any
other voluntary action,  avoid or seek to avoid the observance or performance of
any of the terms to be observed or performed  hereunder by the Corporation,  but
will at all times in good faith assist in the carrying out of all the provisions
of this  Section 5 and in the taking of all such action as may be  necessary  or
appropriate  in order to protect  the  Conversion  Rights of the  holders of the
Cumulative Convertible Preferred Stock against impairment.





                                      -11-


                  (j) Certificate as to Adjustments. Upon the occurrence of each
adjustment or readjustment  of the Conversion  Price pursuant to this Section 5,
the  Corporation,  at its expense,  shall  promptly  compute such  adjustment or
readjustment  in accordance  with the terms hereof and furnish to each holder of
Cumulative   Convertible  Preferred  Stock  a  certificate  setting  forth  such
adjustment  or  readjustment  and  showing  in detail  the facts upon which such
adjustment or readjustment is based.  The  Corporation  shall,  upon the written
request at any time of any holder of  Cumulative  Convertible  Preferred  Stock,
furnish or cause to be  furnished to such holder a similar  certificate  setting
forth (i) such adjustments and readjustments,  (ii) the Conversion Price then in
effect,  and (iii) the number of shares of Common Stock and the amount,  if any,
of other property which then would be received upon the conversion of Cumulative
Convertible Preferred Stock.

                  (k)      Notice of Record Date.  In the event:

                    (i) that the  Corporation  declares a dividend (or any other
         distribution)  on its Common  Stock  payable  in Common  Stock or other
         securities of the Corporation;

                   (ii)    that the Corporation subdivides or combines its
         outstanding shares of Common Stock;

                  (iii)  of any  reclassification  of the  Common  Stock  of the
         Corporation (other than a subdivision or combination of its outstanding
         shares  of  Common  Stock or a stock  dividend  or  stock  distribution
         thereon),  or of any consolidation or merger of the Corporation into or
         with another corporation, or of the sale of all or substantially all of
         the assets of the Corporation; or

                   (iv)    of the involuntary or voluntary dissolution,
         liquidation or winding up of the Corporation,

         then the Corporation shall cause to be filed at its principal office or
         at the  office  of the  transfer  agent of the  Cumulative  Convertible
         Preferred  Stock,  and shall  cause to be mailed to the  holders of the
         Cumulative Convertible Preferred Stock at their last addresses as shown
         on the records of the  Corporation or such transfer agent, at least ten
         days prior to the record  date  specified  in (A) below or twenty  days
         before the date specified in (B) below, a notice stating

                           (A) the record date of such  dividend,  distribution,
                  subdivision or combination or, if a record is not to be taken,
                  the date as of which the holders of Common Stock





                                      -12-


                  of  record  to  be  entitled  to  such dividend, distribution,
                  subdivision or combination are to be determined, or

                           (B)  the   date  on  which   such   reclassification,
                  consolidation,   merger,  sale,  dissolution,  liquidation  or
                  winding up is expected to become effective, and the date as of
                  which it is expected  that  holders of Common  Stock of record
                  shall be entitled to exchange their shares of Common Stock for
                  securities   or   other   property   deliverable   upon   such
                  reclassification,  consolidation, merger, sale, dissolution or
                  winding up.

                  6.       Redemption.

                  (a) At any time and from time to time  after  March 31,  1999,
the  Corporation  may,  at the  option of its  Board of  Directors,  redeem  the
Cumulative Convertible Preferred Stock in the manner provided below, in whole or
in part, at a redemption price (the "Optional  Redemption  Price") equal to 100%
of  the  Liquidation  Preference  thereof  plus  the  Additional  Amount  on the
Redemption  Date (as defined  below);  provided that the  Corporation  shall not
redeem any shares of Cumulative Convertible Preferred Stock unless and until all
accrued and unpaid dividends  (including any interest accruing thereon as herein
provided) on the Cumulative  Convertible  Preferred Stock through the Redemption
Date have been paid in full in cash.

                  (b) The  Corporation  shall redeem all  outstanding  shares of
Cumulative  Convertible Preferred Stock on March 31, 2008 in the manner provided
below at a redemption price equal to the Liquidation Preference thereof plus the
Additional Amount on the Redemption Date (the "Mandatory Redemption Price").

                  (c)  At  least  30  days  prior  to the  date  fixed  for  any
redemption of Cumulative Convertible Preferred Stock (hereinafter referred to as
the  "Redemption  Date"),  written  notice (the  "Redemption  Notice")  shall be
mailed,  by first class or registered mail,  postage prepaid,  to each holder of
record of Cumulative  Convertible Preferred Stock to be redeemed, at its address
last shown on the records of the transfer  agent of the  Cumulative  Convertible
Preferred  Stock (or the  records  of the  Corporation,  if it serves as its own
transfer agent). The Redemption Notice shall state:

                  (1)      whether the redemption is pursuant to Section (6)(a)
         or (6)(b) hereof;





                                      -13-


                  (2) the  Optional  Redemption  Price or  Mandatory  Redemption
         Price, as the case may be;

                  (3) whether all or less than all the outstanding shares of the
         Cumulative  Convertible Preferred Stock redeemable thereunder are to be
         redeemed and the total number of shares of such Cumulative  Convertible
         Preferred Stock being redeemed;

                  (4) the number of shares of Cumulative  Convertible  Preferred
         Stock held, as of the  appropriate  record date, by the holder that the
         Corporation intends to redeem;

                  (5) the date fixed for redemption (the "Redemption Date");

                  (6) that the holder is to surrender to the Corporation, at the
         place or places where certificates for shares of Cumulative Convertible
         Preferred Stock are to be surrendered for redemption, in the manner and
         at the price designated,  his certificate or certificates  representing
         the shares of Cumulative  Convertible  Preferred  Stock to be redeemed;
         and

                  (7) that dividends on the shares of the Cumulative Convertible
         Preferred  Stock  to be  redeemed  shall  cease to  accumulate  on such
         Redemption Date unless the  Corporation  defaults in the payment of the
         Optional  Redemption  Price or the Mandatory  Redemption  Price, as the
         case may be.

                  (d) Each  Holder of  Cumulative  Convertible  Preferred  Stock
shall  surrender the  certificate or  certificates  representing  such shares of
Cumulative Convertible Preferred Stock to the Corporation, duly endorsed, in the
manner  and  at  the  place  designated  in the  Redemption  Notice,  and on the
Redemption  Date the full  Optional  Redemption  Price or  Mandatory  Redemption
Price,  as the case may be,  for such  shares  shall be  payable  in cash to the
Person  whose name  appears on such  certificate  or  certificates  as the owner
thereof,  and each  surrendered  certificate  shall be canceled  and retired and
shall not under any  circumstances be reissued.  In the event that less than all
of  the  shares  represented  by  any  such  certificate  are  redeemed,  a  new
certificate shall be issued representing the unredeemed shares.

                  (e) Unless the Corporation  defaults in the payment in full of
the redemption price,  dividends on the Cumulative  Convertible  Preferred Stock
called for redemption  shall cease to accumulate on the Redemption Date, and the
holders of such  redeemed  shares  shall cease to have any  further  rights with
respect thereto on the Redemption Date, other than the right to receive the





                                      -14-


Optional  Redemption  Price or Mandatory  Redemption  Price, as the case may be,
without interest.

                  (f) In the event of any  redemption of only a part of the then
outstanding Cumulative Convertible Preferred Stock, the Corporation shall effect
such redemption pro rata among the holders thereof based on the number of shares
of Cumulative  Convertible  Preferred  Stock held by such holders on the date of
the Redemption
Notice.

                  7.       Certain Restrictions.

                  (a) No dividends or other  distributions  shall be declared or
paid,  set apart for  payment or  otherwise  made on any Junior  Stock or Parity
Stock for any period and no shares of any Junior  Stock or Parity Stock shall be
redeemed  or  otherwise   repurchased  unless  (i)  full  cumulative   dividends
(including  any  interest  accruing  thereon  as herein  provided)  have been or
contemporaneously  are declared and paid (or declared and a sum  sufficient  for
the payment  thereof set apart for such payment) on the  Cumulative  Convertible
Preferred Stock for all dividend  payment periods ending on or prior to the date
such  dividend or other  distribution  shall be declared or paid,  set apart for
payment or otherwise made or the date of such  redemption or repurchase,  as the
case may be, (ii) on the date such dividend  shall be declared,  paid, set apart
for payment or otherwise made or the date of such  redemption or repurchase,  as
the case may be, the  Corporation  shall have made all  payments  required to be
made by it pursuant to Section 6 and otherwise be in compliance  with all of its
obligations hereunder.

                  (b) The  Corporation  shall not  create or permit to exist any
contractual  restriction  which  would  restrict  in any way  the  Corporation's
ability to make required payments on the Cumulative  Convertible Preferred Stock
or the Series C Preferred Stock,  except: (1) for such contractual  restrictions
consented  to in  writing  by a  majority  of  the  holders  of  the  Cumulative
Convertible  Preferred  Stock before or after the  Corporation  enters into such
contractual  restrictions  (the  "Approved  Contracts"),  and (2) any subsequent
amendments,   modifications,   supplements,  or  restatements  of  the  Approved
Contracts  (including such contractual  restrictions  entered into in connection
with any  refinancings  of any debt  instruments  issued by or borrowings of the
Corporation)  (the "Subsequent  Contracts");  provided that, any such Subsequent
Contracts  will not be permitted to contain  restrictions  on the  Corporation's
payment obligations with respect to the Cumulative  Convertible  Preferred Stock
or Series C Preferred Stock of the Corporation  which are more restrictive than,
or more adverse to the





                                      -15-


holders of the  Cumulative  Convertible  Preferred  Stock or Series C  Preferred
Stock of the  Corporation,  in each such case,  in any  material  respect as set
forth in any such Approved Contracts.