EXHIBIT 99.7

  
                              VOTING AGREEMENT
  
      This VOTING AGREEMENT, dated June 11, 1998, between Cerberus 
 Partners, L.P., a Delaware limited partnership ("Cerberus"), and Davel
 Communications Group, Inc., an Illinois corporation (the "Company"). 
  
      WHEREAS, concurrently with the execution and delivery of this
 Agreement, PhoneTel Technologies, Inc., an Ohio corporation ("PhoneTel"),
 the Company, Davel Holdings, Inc., a Delaware corporation and a wholly
 owned subsidiary of the Company ("New Davel"), D Subsidiary, Inc., an
 Illinois corporation and a wholly owned subsidiary of New Davel ("D Sub"),
 and PT Merger Corp., an Ohio corporation and a wholly owned subsidiary of
 New Davel ("P Sub"), have entered into an Agreement and Plan of Merger and
 Reorganization (the "Merger Agreement"), dated the date hereof, pursuant to
 which (i) D Sub will be merged with and into the Company with the Company
 surviving as a wholly owned subsidiary of New Davel (the "Davel Merger")
 and (ii) P Sub will be merged with and into PhoneTel with PhoneTel
 surviving as a wholly owned subsidiary of New Davel (the "PhoneTel
 Merger"). 
  
      WHEREAS, the consummation of the PhoneTel Merger, and the other
 transactions contemplated by the Merger Agreement (the "Transaction"), is
 subject to certain conditions, including the approval of the Merger
 Agreement and the PhoneTel Merger by the holders of at least a majority of
 the outstanding shares of common stock, par value $.01 per share, of 
 PhoneTel ("PhoneTel Common Stock"). 
  
      WHEREAS, Cerberus is the holder of warrants (the "Warrants") to
 purchase shares of Series A Special Convertible Preferred Stock, par value
 $.20 per share (the Preferred Stock), of PhoneTel at an exercise price of
 $.20 per share of Preferred Stock.   
  
      WHEREAS, the Preferred Stock is convertible into an aggregate of
 1,798,240 shares of PhoneTel Common Stock (such shares, upon acquisition
 thereof by Cerberus, being herein referred to as the "Warrant Shares"). 
  
      WHEREAS, under the terms of the Warrant Purchase Agreement dated March
 15, 1996 (the "Warrant Agreement") between PhoneTel and Cerberus pursuant
 to which the Warrants were issued, the Warrants are immediately exercisable
 for the Preferred Stock; and, under the terms of the Preferred Stock, as
 set forth in the Articles of Incorporation of PhoneTel, upon issuance, the
 Preferred Stock will be immediately convertible into the Shares. 
  
      WHEREAS, Cerberus is the record and beneficial owner of 124,300 shares
 of PhoneTel Common Stock (such shares being herein referred to as the
 "Currently Held Shares" and, together with the Warrant Shares and any other
 shares of capital stock of PhoneTel acquired by Cerberus after the date
 hereof and during the term of this Agreement being collectively herein
 referred to as the "Shares"), which shares collectively represent
 approximately 8.0% of the Shares of PhoneTel Common Stock outstanding as of
 June 1, 1998. 
  
      WHEREAS, as a condition to the willingness of the Company to enter
 into the Merger Agreement, and as an inducement to it to do so, Cerberus
 has agreed for the benefit of the Company as set forth in this Agreement. 
  
      NOW, THEREFORE, in consideration of the representations, warranties,
 covenants and agreements contained in this Agreement, the parties hereby
 agree as follows: 
  
                                 ARTICLE I 
  
                           COVENANTS OF CERBERUS 
  
      Section 1.1    Agreement to Exercise Warrants.  Cerberus covenants and
 agrees with the Company that, prior to the record date for the PhoneTel
 Shareholders Meeting (as hereinafter defined), Cerberus will exercise the
 Warrants for all of the shares of Preferred Stock issuable upon exercise of
 the Warrants and will pay the exercise price payable in respect thereof. 
  
      Section 1.2    Agreement to Convert Preferred Stock.  Cerberus
 covenants and agrees with the Company that, prior to the record date for
 the PhoneTel Stockholders Meeting, Cerberus will convert the Preferred
 Stock into all of the shares of PhoneTel Common Stock issuable upon
 conversion of  the Preferred Stock  and will continue to hold the Shares
 through such record date so that Cerberus is a holder of record of PhoneTel
 Common Stock entitled to vote the Shares at the PhoneTel Stockholders
 meeting. 
  
      Section 1.3    Agreement to Vote.  At any meeting of the shareholders
 of the Company held prior to the Termination Date (as hereinafter defined),
 however called ("PhoneTel Shareholders Meeting"), and at every reconvened
 meeting following any adjournment or postponement thereof prior to the
 Termination Date, or in connection with any written consent of the
 shareholders of the Company executed prior to the Termination Date,
 Cerberus shall vote the Shares in favor of the approval of the Merger
 Agreement, the PhoneTel Merger and each of the actions contemplated by the
 Merger Agreement to be performed by PhoneTel in connection with the
 Transaction and any actions required in furtherance thereof.  Prior to the
 Termination Date and subject to Section 2.5, Cerberus shall not enter into
 any agreement or understanding with any person, directly or indirectly, to
 vote, grant any proxy or give instructions with respect to the voting of
 the Shares in any manner inconsistent with the preceding sentence. 
  
      Section 1.4    Proxies.  (a) Cerberus hereby revokes any and all
 previous proxies granted with respect to matters set forth in Section 1.3
 for the Shares. 
  
      (b)  Prior to the Termination Date, Cerberus shall not grant any
 proxies or powers of attorney with respect to matters set forth in Section
 1.3, deposit any of the Shares into a voting trust or enter into a voting
 agreement, other than this Agreement, with respect to any of the Shares, in
 each case with respect to such matters. 
  
      Section 1.5    Transfer of Shares by Cerberus.  Prior to the
 Termination Date, Cerberus shall not (a) pledge or place any encumbrance on
 any Shares, other than pursuant to this Agreement, or (b) transfer, sell,
 exchange or otherwise dispose of any Shares, in each case unless the
 pledgee, encumbrance holder, transferee, purchaser or acquiror of such
 Shares enters into a Voting Agreement with the Company containing
 substantially the same terms as this Agreement. 
  
      Section 1.6    Action in Shareholder Capacity Only.  Cerberus makes no
 agreement or understanding herein in any capacity other than its capacity
 as a record holder of the Warrants and Currently Held Shares and a
 beneficial owner of the Warrants, the Preferred Stock and the Shares, and
 nothing herein shall limit or affect any actions taken in any other
 capacity. 
  
                                 ARTICLE II 
  
                      REPRESENTATIONS, WARRANTIES AND 
                      ADDITIONAL COVENANTS OF Cerberus 
  
      Cerberus represents, warrants and covenants to the Company that: 
  
      Section 2.1    Ownership.  As of the date hereof, Cerberus has the
 right, under the terms of the Warrants and the Preferred Stock, to acquire,
 in the aggregate, the 1,798,240 Warrant Shares.  Cerberus is the beneficial
 and record owner of the Currently Held Shares and, upon exercise of the
 Warrants and subsequent conversion of the Preferred Stock, Cerberus will be
 the beneficial and record owner of the Warrant Shares and, subject to
 Section 1.3, Cerberus will have the sole right to vote the Warrant Shares
 and the Currently Held Shares and there will be no restrictions on rights
 of disposition or other liens pertaining to the Warrant Shares or the
 Currently Held Shares.  Cerberus has not agreed to subject any Shares to
 any voting trust or other agreement, arrangement or restriction with
 respect to the voting of the Shares. 
  
      Section 2.2    Authority and Non-Contravention.  Cerberus has the
 right, power and authority to enter into this Agreement and, subject to the
 issuance to Cerberus of the Warrant Shares, to consummate the transactions
 contemplated by this Agreement.  The execution and delivery of this
 Agreement by Cerberus and the consummation of the transactions contemplated
 by this Agreement have been duly authorized by all necessary action on the
 part of Cerberus.  This Agreement has been duly executed and delivered by
 Cerberus and constitutes a valid and binding obligation of Cerberus,
 enforceable against Cerberus in accordance with its terms, subject to
 general principles of equity and as may be limited by bankruptcy,
 insolvency, moratorium, or similar laws affecting creditors' rights
 generally.  Neither the execution and delivery of this Agreement by
 Cerberus nor the consummation by Cerberus of the transactions contemplated
 hereby will (i) materially violate, or require any consent, approval or
 notice under, any provision of any judgment, order, decree, statute, law,
 rule or regulation applicable to Cerberus or, upon issuance thereof to
 Cerberus,  the Shares or (ii) violate or conflict with the certificate of
 incorporation or bylaws of Cerberus or constitute a material violation of
 or default under any contract, commitment, agreement, understanding,
 arrangement or other restriction of any kind to which Cerberus is a party
 or by which Cerberus or its assets are bound. 
  
      Section 2.3    Total Shares.  As of the date hereof, other than the
 Currently Held Shares, Cerberus does not own, beneficially (other than
 through ownership of the Warrants) or of record, any shares of capital
 stock of the Company.  Other than the Warrants, Cerberus does not have any
 option to purchase or right to subscribe for or otherwise acquire any
 securities of the Company and has no other interest in or voting rights
 with respect to any other securities of the Company. 
  
      Section 2.4    Notifications.  Prior to the Termination Date, Cerberus
 will notify the Company promptly of the number of any shares of capital
 stock of PhoneTel acquired by Cerberus after the date hereof. 
  
      Section 2.5    Pooling.  Cerberus agrees not to take any action that
 would cause the Transaction not to qualify for pooling-of-interests
 treatment for accounting purposes. 
  
                                ARTICLE III 
  
                REPRESENTATIONS, WARRANTIES AND COVENANTS OF 
                                THE COMPANY 
  
      The Company represents, warrants and covenants to Cerberus that: 
  
      Section 3.1    Authority and Non-Contravention.  The Company has the
 right, power and authority to enter into this Agreement and to consummate
 the transactions contemplated by this Agreement.  The execution and
 delivery of this Agreement by the Company and the consummation of the
 transactions contemplated by this Agreement have been duly authorized by
 all necessary action on the part of the Company.  This Agreement has been
 duly executed and delivered by the Company and constitutes a valid and
 binding obligation of the Company, enforceable against the Company in
 accordance with its terms, subject to general principles of equity and as
 may be limited by bankruptcy, insolvency, moratorium or similar laws
 affecting creditors' rights generally.  Neither the execution and delivery
 of this Agreement nor the consummation by the Company of the transactions
 contemplated hereby will (i) materially violate, or require any consent,
 approval or notice under, any provision of any judgment, order, decree,
 statute, law, rule or regulation applicable to the Company or (ii) violate
 or conflict with the certificate of incorporation or by laws of the Company
 or constitute a material violation of or default under any contract,
 commitment, agreement, understanding, arrangement or other restriction of
 any kind to which the Company is a party or by which the Company or its
 assets are bound. 
  
                                 ARTICLE IV 
  
                               MISCELLANEOUS 
  
      Section 4.1    Expenses.  All costs and expenses incurred in
 connection with this Agreement shall be paid by the party incurring such
 costs or expenses; provided, however, that the Company shall pay reasonable
 fees and expenses of counsel to Cerberus incurred in connection with the
 negotiation and execution of this Agreement. 
  
      Section 4.2    Further Assurances.  From time to time, at the request
 of the Company, in the case of Cerberus, or at the request of Cerberus, in
 the case of the Company, and without further consideration, each party
 shall execute and deliver or cause to be executed and delivered such
 additional documents and instruments and take all such further action as
 may be reasonably necessary or desirable to consummate the transactions
 contemplated by this Agreement. 
  
      Section 4.3    Specific Performance.  Cerberus agrees that the Company
 would be irreparably damaged if for any reason Cerberus fails to perform
 any of Cerberus' obligations under this Agreement, and that the Company
 would not have an adequate remedy at law for money damages in such event. 
 Accordingly, the Company shall be entitled to seek specific performance and
 injunctive and other equitable relief to enforce the performance of this
 Agreement by Cerberus.  This provision is without prejudice to any other
 rights that the Company may have against Cerberus for any failure to
 perform its obligations under this Agreement. 
  
      Section 4.4    Amendments, Termination.  This Agreement may not be
 modified or amended except by an instrument or instruments in writing
 signed by each party hereto.  The representations, warranties, covenants
 and agreements set forth in Article I, Article II and Article III shall
 terminate, except with respect to liability for prior breaches thereof,
 upon the earliest to occur of (i) December 7, 1998, (ii) termination of the
 Merger Agreement in accordance with its terms, (iii) the Closing Date and
 (iv) the date, if any, upon which PhoneTel's Board of Directors withdraws,
 modifies or changes its recommendation or approval of the Merger Agreement
 or the PhoneTel Merger in a manner adverse to the Company (the "Termination
 Date"). 
  
      Section 4.5    Assignment.  Subject to Section 1.5 hereof, neither
 this Agreement nor any of the rights, interests or obligations under this
 Agreement shall be assigned, in whole or in part, by operation of law or
 otherwise by any of the parties without the prior written consent of the
 other parties.  Subject to the preceding sentence, this Agreement shall be
 binding upon, and inure to the benefit of, the parties hereto and their
 respective successors and assigns. 
  
      Section 4.6    Certain Events.  Cerberus agrees that this Agreement
 and the obligations hereunder shall attach to the Warrants, Preferred
 Stock, Currently Held Shares and Shares and shall be binding upon any
 person to which legal or beneficial ownership of such shares shall pass,
 whether by operation of law or otherwise. 
  
      Section 4.7    Entire Agreement.  This Agreement (including the
 documents referred to herein) (a) constitutes the entire agreement, and
 supersedes all prior agreements and understanding, both oral and written
 between the parties with respect to the subject matter of this Agreement
 and (b) is not intended to confer upon any person other than the parties
 hereto any rights or remedies. 
  
      Section 4.8    Notices.  All notices and other communications
 hereunder shall be in writing and shall be deemed given if delivered
 personally, sent by documented overnight delivery service or telecopied
 with confirmation of receipt, to the parties at the addresses specified
 below (or at such other address or telecopy or telex number for a party as
 shall be specified by like notice): 
  
           If to the Company, to: 
  
                Davel Communications Group, Inc. 
                1429 Massaro Boulevard 
                Tampa, Florida  33619 
                Attention:  Theodore C. Rammelkamp, Jr., Esq. 
                Facsimile:  (813) 626-9610 
  
           with a copy to: 
  
                Kirkland & Ellis 
                200 East Randolph Drive 
                Chicago, Illinois  60601 
                Attention:  R. Scott Falk, Esq. 
                Facsimile:  (312) 861-2200 
  
           If to Cerberus, to: 
  
                Cerberus Partners L.P. 
                450 Park Avenue 
                28th Floor 
                New York, NY 10022 
                Attention:  Mr.  Seth Plattus 
                Facsimile:  (212) 750-5212 
  
           with a copy to: 
  
                Lowenstein, Sandler P.C. 
                65 Livingston Avenue 
                Roseland, NJ  07068 
                Attention:  Robert G. Minion, Esq. 
                Facsimile:  (973) 597-2425 
  
      Section 4.9    Governing Law.  This Agreement shall be governed by,
 and construed in accordance with, the laws of the State of New York
 regardless of the laws that might otherwise govern under applicable
 principles of conflicts of laws thereof. 
  
      Section 4.10   Counterparts.  This Agreement may be executed in two or
 more counterparts, all of which shall be considered one and the same
 agreement, and, shall become effective when one or more counterparts have
 been signed by each of the parties and delivered to the other parties in
 original or facsimile form. 
  
      Section 4.11   Interpretation.  The headings contained in this
 Agreement are inserted for convenience of reference only and shall not
 affect in any way the meaning or interpretation of this Agreement. 
  
      Section 4.12   Severability.  Any provision hereof which is invalid or
 unenforceable shall be ineffective to the extent of such invalidity or
 unenforceability, without affecting in any way the remaining provisions
 hereof. 
  
      Section 4.13   Consent to Jurisdiction.  Each party hereto irrevocably
 submits to the nonexclusive jurisdiction of (a) the state courts of the
 State of New York and (b) the United States federal district courts located
 in the State of New York for the purposes of any suit, action or other
 proceeding arising out of this Agreement or any transaction contemplated
 hereby. 
  
      Section 4.14   Attorney's Fees.  If any action at law or in equity is
 necessary to enforce or interpret the terms of this Agreement, the
 prevailing party shall be entitled to reasonable attorneys' fees, costs and
 necessary disbursements, in addition to any other relief to which such
 party may be entitled. 
  

      IN WITNESS WHEREOF, this Agreement has been signed by or on behalf of
 each of the parties as of the date first above written. 
  

                               CERBERUS PARTNERS, L.P. 
  
  
                               By:________________________________
                               Name: 
                               Title: 
  
  
                               DAVEL COMMUNICATIONS GROUP, INC. 
  
  
                               By:________________________________
                               Name: 
                               Title: