EXHIBIT 3.19
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                                    BY-LAWS

                                      OF

                      CALL POINTS ACQUISITION CORPORATION

                                      

                                   ARTICLE I
                                      
                                 Stockholders
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     Section 1.1.  Annual Meetings.  An annual meeting of stockholders shall be
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held for the election of directors at such date, time and place, either within
or without the State of Delaware, as may be designated by resolution of the
Board of Directors from time to time.  Any other proper business may be
transacted at the annual meeting.

     Section 1.2.  Special Meetings.  Special meetings of stockholders for any
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purpose or purposes may be called at any time by the Board of Directors, or by a
committee of the Board of Directors that has been duly designated by the Board
of Directors and whose powers and authority, as expressly provided in a
resolution of the Board of Directors, include the power to call such meetings,
but such special meetings may not be called by any other person or persons.

     Section 1.3.  Notice of Meeting.  Whenever stockholders are required or
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permitted to take any action at a meeting, a written notice of the meeting shall
be given that shall state the place, date and hour of the meeting and, in the
case of a special meeting, the purpose or purposes for which the meeting is
called.  Unless otherwise provided by law, the certificate of incorporation or
these by-laws, the written notice of any meeting shall be given not less then
ten (10) nor more than sixty (60) days before the date of the meeting to each
stockholder entitled to vote at such meeting.  If mailed, such notice shall be
deemed to be given when deposited in the United States mail, postage prepaid,
directed to the stockholder at his address as it appears on the records of the
corporation.

     Section 1.4.  Adjournments.  Any meeting of stockholders, annual or
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special, may adjourn from time to time to reconvene at the same or some other
place, and notice need not be given of any such adjourned meeting if the time
and place thereof are announced at the meeting at which the adjournment is
taken.  At the adjourned meeting the corporation may transact any business which
might have been transacted at the original meeting.  If the adjournment is for
more than thirty (30) days, or if after the adjournment a new record date is
fixed for the adjourned meeting, notice of the adjourned meeting shall be given
to each stockholder of record entitled to vote at the meeting.

 
     Section 1.5.  Quorum.  Except as otherwise provided by law, the certificate
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of incorporation or these by-laws, at each meeting of stockholders the presence
in person or by proxy of the holders of a majority in voting power of the
outstanding shares of stock entitled to vote at the meeting shall be necessary
and sufficient to constitute a quorum.  In the absence of a quorum, the
stockholders so present may, by majority vote, adjourn the meeting from time to
time in the manner provided in Section 1.4 of these by-laws until a quorum shall
attend.  Share s of its own stock belonging to the corporation or to another
corporation, if a majority of the shares entitled to vote in the election of
directors of such other corporation is held, directly or indirectly, by the
corporation, shall neither be entitled to vote nor be counted for quorum
purposes; provided, however, that the foregoing shall not limit the right of the
corporation or any subsidiary of the corporation to vote stock, including but
not limited to its own stock, held by it in a fiduciary capacity.

     Section 1.6.  Organization.  Meeting of the stockholders shall be presided
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over by the Chairman of the Board, if any, or in his absence by the Vice
Chairman of the Board, if any, or in his absence by the President, or in his
absence by a Vice President, or in the absence of the foregoing persons by a
chairman designated by the Board of Directors, or in the absence of such
designation by the chairman chosen at the meeting.  The Secretary shall act as
secretary of the meeting, but in his absence the person presiding over the
meeting may appoint any person to act as secretary of the meeting.  The person
presiding over the meeting shall announce at the meeting of stockholders the
date and time of the opening and the closing of the polls for each matter upon
which the stockholders will vote.

     Section 1.7.  Voting; Proxies.  Except as otherwise provided by the
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certificate of incorporation, each stockholder entitled to vote at any meeting
of stockholders shall be entitled to one (1) vote for each share of stock held
by him which has voting power upon the matter in question.  Each stockholder
entitled to vote at a meeting of stockholders or to express consent or dissent
to corporate action in writing without a meeting may authorize another  person
or persons to act for him by proxy, but no such proxy shall be voted or acted
upon after three (3) years from its date, unless the proxy provides for a longer
period.  A proxy shall be irrevocable if it states that it is irrevocable and
if, and only as long as, it is coupled with an interest sufficient in law to
support an irrevocable power.  A stockholder may revoke any proxy which is not
irrevocable by attending the meeting and voting in person or by filing with the
Secretary of the corporation an instrument in writing revoking the proxy or by
delivering a proxy in accordance with applicable law bearing a later date to the
Secretary of the corporation.  Voting a meeting of stockholders need not be by
written ballot.  At all meetings of stockholders for the election o directors a
plurality of the votes cast shall be sufficient to elect.  All other elections
and questions shall, unless otherwise provided by law, the certificate of
incorporation or these by-laws, be decided by the affirmative vote of the
holders of a majority in voting power of the shares of stock which are present
in person or by proxy and entitled to vote thereon.

     Section 1.8.  Fixing Date for Determination of Stockholder of Record.  In
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order that the corporation may determine the stockholders entitled to notice of
or to vote at any meeting of stockholders or any adjournment thereof, or to
express consent to corporate action in writing without a meeting, or entitled to
receive payment of any dividend or other distribution or 

 
allotment of any rights, or entitled to exercise any rights in respect of any
change, conversion or exchange of stock or for the purpose of any other lawful
action, the Board of Directors may fix a record date, which record date shall
not precede the date upon which the resolution fixing the record date is adopted
by the Board of Directors, and which record date: (i) in the case of
determination of stockholders entitled to vote at any meeting of stockholders or
adjournment thereof, shall, unless otherwise required by law, not be more than
sixty (60) nor less than ten (10) days before the date of such meeting; (ii) in
the case of determination of stockholders entitled to express consent to
corporate action in writing without a meeting, shall not be ore than ten (10)
days from the date upon which the resolution fixing the record date is adopted
by the Board of Directors; and (iii) in the case of determination of
stockholders for the purpose of any other lawful action, shall not be more than
sixty (60) days prior to such other action. If no record date is fixed: (iv) the
record date for determining stockholder entitled to notice of or to vote at a
meeting of stockholders shall be at the close of business on the day next
preceding the day on which the meeting is held; (v) the record date for
determining stockholders entitled to express consent to corporate action in
writing without a meeting, when no prior action of the Board of Directors is
required by law, shall be the first date on which a signed written consent
setting forth the action taken or proposed to be taken is delivered to the
corporation in accordance with applicable law, or, if prior action by the Board
of Directors is required by law, shall be at the close of business on the day on
which the Board of Directors adopts the resolution taking such prior action; and
(vi) the record date for determining stockholders for the purpose of any other
lawful action, shall be a t the close of business on the day on which the Board
of Directors adopts the resolution relating thereto. A determination of
stockholders of record entitled to notice of or to vote at a meeting of
stockholders shall apply to any adjournment of the meeting; provided, however,
that the Board of Directors may fix a new record date for the adjourned meeting.

     Section 1.9.  List of Stockholders Entitled to Vote.  The Secretary shall
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prepare and make, at lease ten (10) days before every meeting of stockholders, a
complete list of the stockholders entitled to vote at the meeting, arranged in
alphabetical order, and showing the address of each stockholder and the number
of shares registered in the name of the stockholder.  Such list shall be open to
the examination of any stockholder, for any purpose germane to the meeting,
during ordinary business hours, for a period of at least ten(10) days prior to
the meeting, either at a place within the city where the meeting is to be held,
which place shall be specified in the notice of the meeting, or, if not so
specified, at the place where the meeting is to be held.  The list shall also be
produced and kept at the time and place of the meeting during the whole time
thereof and may be inspected by any stockholder who is present.  Upon the
willful neglect or refusal of the directors to produce such a list at any
meeting for the election of directors, they shall be ineligible for election to
any office at such meeting.  Except as otherwise provided by law, the stock
ledger shall be the only evidence as to who are the stockholders entitled (i) to
examine the stock ledger, the list of stockholder entitled to vote fat the
meeting or the books of the corporation, (ii) to vote in person or by proxy at
any meeting of stockholders, or (iii) to express consent or dissent to corporate
action in writing without a meeting.

     Section 1.10.  Action By Consent of Stockholders.  Unless otherwise
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restricted by the certificate of incorporation, any action required or permitted
to be taken at any annual or special meeting of the stockholders may be taken
without a meeting, without prior notice and without a 

 
vote, if a consent or consents in prior notice and without a vote, if a consent
or consents in writing, setting forth the action so taken, shall be signed by
the holders of outstanding stock having not less than the minimum number of
votes that would be necessary to authorize or take such action at a meeting at
which all shares entitled to vote thereon were present and voted and shall be
delivered (by hand or by certified or registered mail, return receipt requested)
to the corporation by delivery to its registered office in the State of
Delaware, its principal place of business, or an officer or agent of the
corporation having custody of the book in which minutes of proceedings of
meetings of stockholders are recorded. Prompt notice of the taking of the
corporate action without a meeting by less than unanimous written consent shall
be given to those stockholders who have not consented in writing.

     Section 1.11.  Inspectors of Election.  The corporation may, and shall if
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required by law, in advance of any meeting of stockholders, appoint one (1) or
ore inspectors of election, who may be employees of the corporation, to act at
the meeting or any adjournment thereof and to make a written report thereof.
The corporation may designate one (1) or more persons as alternate inspectors to
replace any inspector who fails to act.  In the event that no inspector so
appointed or designated is able to act at a meeting of the stockholders, the
person presiding at the meeting shall appoint one (1) or more inspectors to act
at the meeting.  Each inspector, before entering upon the discharge of his or
her duties, shall take and sign an oath to execute faithfully the duties of
inspector with strict impartiality and according to the best of his or her
ability.  The inspector or inspectors so appointed or designated shall (i)
ascertain the number of shares of capital stock of the corporation outstanding
and the voting power of each such share, (ii) determine the shares of capital
stock of the corporation represented at the meeting and the validity of proxies
and ballots, (iii) count all votes and ballots, (iv) determine and retain for a
reasonable period a record of the disposition of any challenges made to any
determination by the inspectors, and (v) certify heir determination of the
number of shares of capital stock of the corporation represented at the meeting
and such inspector's or inspectors' count of all votes and ballots.  Such
certification and report shall specify such other information as may be required
by law.  In determining validity and counting of proxies and ballots cast at any
meeting of stockholders of the corporation, the inspectors may consider such
information as is permitted by applicable law.  No person who is a candidate for
an office at an election may serve as an inspector at such election.

     Section 1.12.  Conduct of Meeting.  The Board of Directors of the
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corporation may adopt by resolution such rules and regulations for the conduct
of the meeting of stockholders as it shall deem appropriate.  Except to the
extent inconsistent with such rules and regulations as adopted by the Board of
directors, the person presiding over any meeting of stockholders shall have the
right and authority to prescribe such rules, regulations and procedures and to
do all such acts as, in the judgment of such person, are appropriate for the
proper conduct of the meeting.  Such rules, regulations or procedures, whether
adopted by the Board of Directors or prescribed by the person presiding over the
meeting, may include, without limitation, the following:  (i) the establishment
of an agenda or order of business for the meeting; (ii) rules and procedures for
maintaining order at the meeting and the safety of those present; (iii)
limitations on attendance at or participation in the meeting to stockholders of
record of the corporation, their duly authorized and constituted proxies or such
other persons as the person presiding over the meeting shall 

 
determine; (iv) restrictions on entry to the meeting after the time fixed for
the commencement thereof; and (v) limitations on the time allotted to questions
or comments by participants. Unless and to the extent determined by the Board of
Directors or the person presiding over the meeting, meeting of stockholders
shall not be required to be held in accordance with the rules of parliamentary
procedure.

                                  ARTICLE II
                                        
                              Board of Directors
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     Section 2.1.  Number; Qualifications.  The Board of Directors shall consist
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of one (1) or more members.  The number of members comprising the Board of
Directors initially shall be the number of persons named as directors in the
certificate of incorporation (or if no person is so named, the number of persons
elected by the Incorporator).  The number of members comprising the Board of
Directors thereafter shall be determined from time to time by resolution of the
Board of Directors.  Directors need not be stockholders.

     Section 2.2.  Election; Resignation; Removal; Vacancies.  The Board of
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Directors initially shall consist of the person of persons named as Directors in
the certificate of incorporation (or, if no person is no named, the person or
persons elected by the Incorporator), and each director so elected shall hold
office until his successor is elected and qualified or until his earlier death,
resignation, or removal.  At the first annual meeting of stockholders and a t
each annual meeting thereafter, the stockholders shall elect directors each of
whom shall hold office until his successor is elected and qualified or until his
earlier death, resignation, or removal.  Any director may resign at any time
upon written notice to the corporation.  Any newly created directorship or any
vacancy occurring in the Board of Directors for any cause may be filled by a
majority of the remaining members of the Board of Directors, although such
majority is less than a quorum, or by a plurality of the votes cast at a meeting
of stockholders, and each director so elected shall hold office until the
expiration of the term of office of the director whom he has replaced, or until
his successor is elected and qualified, or until his earlier death, resignation,
or removal.

     Section 2.3.  Regular Meetings.  Regular meetings of the Board of Directors
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may be held a such places within or without the State of Delaware and at such
times as the Board of Directors may from time to time determine, and if so
determined notices thereof need not be given.

     Section 2.4.  Special Meeting.  Special meetings of the Board of Directors
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may be held at any time or place within or without the State of Delaware
wherever called by the President, any Vice President, the Secretary, or by any
member of the Board of Directors.  Notice of a special meeting of the Board of
Directors shall be given by the person or persons calling the meeting at least
twenty-four (24) hours before the special meeting.

     Section 2.5.  Telephonic Meetings Permitted.  Members of the Board of
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Directors, or any committee designated by the Board of Directors, may
participate in a meeting thereof by 

 
means of conference telephone or similar communications equipment by means of
which all persons participating in the meeting can hear each other, and
participation in a meeting pursuant to this by-law shall constitute presence in
person at such meeting.

     Section 2.6.  Quorum; Vote Required for Action.  At all meetings of the
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Board of Directors a majority of the whole Board of Directors shall constitute a
quorum for the transaction of business.  Except in the cases in which the
certificate of incorporation, these by-laws or applicable law otherwise
provides, the vote of a majority of the directors present at a meeting at which
a quorum is present shall be the act of the Board of Directors.

     Section 2.7.  Organization.  Meetings of the Board of Directors shall be
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presided over by the Chairman of the Board, if any, or in his absence by the
Vice Chairman of the Board, if any, or in his absence by the President, or in
the absence of the foregoing persons by a chairman chosen at the meeting.  The
Secretary shall act as secretary of the meeting, but in his absence the person
presiding over the meeting may appoint any person to act as secretary of the
meeting.

     Section 2.8.  Informal Action by Directors.  Unless otherwise restricted by
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the certificate of incorporation or these by-laws, any action required or
permitted to be taken at any meeting of the Board of Directors, or of any
committee thereof, may be taken without a meeting if all members of the Board of
Directors or such committee, as the case may be, consent thereto in writing, and
the writing or writings are filed with the minutes of proceedings of the Board
of Directors or committee.


                                  ARTICLE III
                       
                                  Committees
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     Section 3.1.  Committees.  The Board of Directors may, by resolution passed
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by a majority of the whole Board of Directors, designate one (1) or more
committees, each committee to consist of one (1) or more of the directors of the
corporation.  The Board of Directors may designate one (1) or more directors as
alternate members of any committee, who may replace any absent or disqualified
member at any meeting of the committee.  In the absence or disqualification of a
member of the committee, the member or members thereof present at any meeting
and not disqualified from voting, whether or not he or they constitute a quorum,
may unanimously appoint another member of the Board of Directors to act at the
meeting in place of any such absent or disqualified member.  Any such committee,
to the extent permitted by law and to the extent provided in the resolution of
the Board of Directors, shall have and may exercise all of the powers and
authority of the Board of Directors in the management of the business and
affairs of the corporation, and may authorize the seal of the corporation to be
affixed to all papers which may require it.

     Section 3.2.  Committee Rules.  Unless the Board of Directors otherwise
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provides, each committee designated by the Board of Directors may make, alter
and repeal rules for the conduct of its business.  In the absence of such rules
each committee shall conduct its business in the 

 
same manner as the Board of Directors conducts its business pursuant to Article
II of these by-laws.


                                  ARTICLE IV
                                        
                                   Officers
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     Section 4.1.  Executive Officers; Election; Qualifications; Term of Office;
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Resignation; Removal; Vacancies.  The Board of Directors shall elect a President
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and Secretary, and it may, if it so determines, choose a Chairman of the Board
and a Vice Chairman of the Board from among its members.  The Board of Directors
may also choose one (1) or more Vice Presidents, one (1) or more Assistant
Secretaries, a Treasurer and one (1) or more Assistant Treasurers.  Each such
officer shall hold office until the first meeting of the Board of directors
after the annual meeting of stockholders next succeeding his election, and until
his successor is elected and qualified or until his earlier death, resignation,
or removal.  Any officer may resign at any time upon written notice to the
corporation.  The Board of Directors may remove any officer with or without
cause at any time, but such removal shall be without prejudice to the
contractual rights of such officer, if any, with the corporation.  Any number of
offices may be held by the same person.  Any vacancy occurring in any office of
the corporation by death, resignation, removal, or otherwise may be filled for
the unexpired portion of the term by the Board of Directors at any regular or
special meeting.

     Section 4.2.  Powers and Duties of Executive Officers.
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                   (i)    President.  The President shall be the chief executive
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officer of the corporation. Subject to the provisions of the certificate of
incorporation, these by-laws, and the direction of the Board of Directors, the
President shall have the responsibility for the general management and control
of the business and affairs of the corporation and shall perform all duties and
have all powers which are commonly incident to the office of chief executive or
which are delegated to him or her by the Board of Directors. The President shall
have power to execute in the name of the corporation all contracts, agreements,
deeds, bonds, mortgages, and other obligations and instruments of the
corporation which are authorized, and to affix the corporate seal thereto. The
President shall have general supervision and direction of all of the other
officers, employees, and agents of the corporation.

                   (ii)   Vice President.  Each Vice President, if any, shall
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have such powers and perform such duties as the Board of Directors may from time
to time prescribe. The Vice President (if only one (1) Vice President is chosen
by the Board) or one (1) Vice President designated by the Board (if two (2) or
more Vice Presidents are chosen by the Board of Directors) shall perform the
duties and exercise the powers of the President in the event of the President's
absence or disability.

                   (iii)  Treasurer.  The Treasurer, if any, shall have the
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responsibility for maintaining the financial records of the corporation. The
Treasurer shall make such disbursements of the funds of the corporation as are
authorized and shall render from time to 

 
time an account of all such transactions and of the financial condition of the
corporation. The Treasurer shall have such other powers and perform such other
duties as the Board of Directors may from time to time prescribe.

                   (iv)   Secretary.  The Secretary shall issue all authorized
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notices for, and shall keep minutes of, all meetings of the stockholders and of
the Board of Directors. The Secretary shall have charge of the corporate books
and shall have such other powers and perform such other duties as the Board of
Directors may from time to time prescribe.

                   (v)    Assistant Secretary and Assistant Treasurer.  Each
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Assistant Secretary, if any, and each Assistant Treasurer, if any, shall have
such powers and perform such duties as the Board of Directors may from time to
time prescribe.

                   (vi)   Delegation of Authority.  The Board of Directors may
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from time to time delegate the powers or duties of any officer to any other
officers or agents, notwithstanding any provision hereof.


                                   ARTICLE V
                                                                           
                                     Stock
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     Section 5.1.  Certificates.  Every holder of stock shall be entitled to
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have a certificate signed by or in the name of the corporation by the Chairman
or Vice Chairman of the Board of Directors, if any, or the President or a Vice
President, and by the Treasurer or an Assistant Treasurer, or the Secretary or
an Assistant Secretary, of the corporation certifying the number of shares owned
by him in the corporation.  Any of or all the signatures on the certificate may
be a facsimile.  In case any officer, transfer agent, or registrar who has
signed or whose facsimile signature has been placed upon a certificate shall
have ceased to be such officer, transfer agent, or registrar before such
certificate is issued, it may be issued by the corporation with the same effect
as if he were such officer, transfer agent, or registrar at the date of issue.

     Section 5.2.  Lost, Stolen or Destroyed Stock Certificates; Issuance of New
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Certificates.  The corporation may issue a new certificate of stock in the place
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of any certificate theretofore issued by it, alleged to have been lost, stolen
or destroyed, and the corporation may require the owner of the lost, stolen or
destroyed certificate, or his legal representative, to give the corporation a
bond sufficient to indemnify it against any claim that may be made against it on
account of the alleged loss, theft or destruction of any such certificate or the
issuance of such new certificate.