EXHIBIT 3.2

                             AMENDED AND RESTATED
                         CERTIFICATE OF INCORPORATION
                                      OF
                         LATITUDE COMMUNICATIONS, INC.
                                        
     The Undersigned, Rick M. McConnell and Mark A. Medearis, hereby certify 
that:

     1.  They are the duly elected and acting Vice President and Chief Financial
Officer and Secretary, respectively, of Latitude Communications, Inc., a
Delaware corporation.

     2.  The Certificate of Incorporation of this corporation was originally
filed with the Secretary of State of Delaware on February 9, 1999.

     3.  The Certificate of  Incorporation of this corporation shall be amended
and restated to read in full as follows:

                                   ARTICLE I
                                        
     "The name of this corporation is Latitude Communications, Inc. (the
"Corporation").
 -----------   

                                  ARTICLE II
                                        

     The address of the Corporation's registered office in the State of Delaware
is 1013 Centre Road, Wilmington, County of New Castle.  The name of its
registered agent at such address is Corporation Service Company.


                                  ARTICLE III
                                        
     The purpose of the Corporation is to engage in any lawful act or activity
for which corporations may be organized under the General Corporation Law of
Delaware.

                                  ARTICLE IV

     (A) CLASSES OF STOCK.  The Corporation is authorized to issue two classes
         ----------------                                                     
of stock to be designated, respectively, "Common Stock" and "Preferred Stock."
                                          ------------       ---------------   
The total number of shares which the Corporation is authorized to issue is
80,000,000 shares, each with a par value of $0.001 per share. 75,000,000 of such
shares shall be Common Stock, and 5,000,000 of such shares shall be Preferred
Stock.

     (B) The Preferred Stock may be issued from time to time in one or more
series.  The Board of Directors is hereby authorized, within the limitations and
restrictions stated in this Certificate of Incorporation, to determine or alter
the rights, preferences, privileges and restrictions granted to or imposed upon
any wholly unissued series of Preferred Stock and the number of shares
constituting any such series and the designation thereof, or any of them; and to

                                       1

 
increase or decrease the number of shares of any series subsequent to the
issuance of shares of that series, but not below the number of shares of such
series then outstanding.  In case the number of shares of any series shall be so
decreased, the shares constituting such decrease shall resume the status which
they had prior to the adoption of the resolution originally fixing the number of
shares of such series.

                                   ARTICLE V
                                        
     The number of directors of the Corporation shall be fixed from time to time
by a bylaw or amendment thereof duly adopted by the Board of Directors.

                                  ARTICLE VI
                                        
     "Listing Event" as used in this Amended and Restated Certificate of
      -------------                                                     
Incorporation shall mean the first annual meeting of stockholders following such
time as the Corporation meets the criteria set forth in subdivisions (1), (2) or
(3) of Section 2115(c) the California Corporations Code as of the record date of
such meeting.

     For the management of the business and for the conduct of the affairs of
the Corporation, and in further definition, limitation and regulation of the
powers of the Corporation, its directors and its stockholders or any class
thereof, as the case may be, it is further provided that, effective upon the
occurrence of the Listing Event:

          (i)  The number of directors which shall constitute the entire Board
of Directors, and the number of directors in each class, shall be fixed
exclusively by one or more resolutions adopted from time to time by the Board of
Directors. The Board of Directors shall be divided into three classes,
designated as Class I, Class II and Class III, respectively. Directors shall be
assigned to each class in accordance with a resolution or resolutions adopted by
the Board of Directors. Until changed by a resolution of the Board of Directors,
Class I shall consist of two directors, each of whom shall be designated by the
Board of Directors; Class II shall consist of two directors, each of whom shall
be designated by the Board of Directors; and Class III shall consist of one
director, each of whom shall be designated by the Board of Directors.

               Upon the occurrence of the Listing Event, the terms of office of
the Class I directors shall expire, and Class I directors shall be elected for a
full term of three years. At the first annual meeting of stockholders following
the Listing Event, the term of office of the Class II directors shall expire,
and Class II directors shall be elected for a full term of three years. At the
second annual meeting of stockholders following the Listing Event, the term of
office of the Class III directors shall expire, and Class III directors shall be
elected for a full term of three years. At each succeeding annual meeting of
stockholders, directors shall be elected for a full term of three years to
succeed the directors of the class whose terms expire at such annual meeting.

               Any vacancies on the Board of Directors resulting from death,
resignation, disqualification, removal, or other causes shall be filled by
either (i) the affirmative vote of the

                                      -2-

 
holders of a majority of the voting power of the then-outstanding shares of
voting stock of the corporation entitled to vote generally in the election of
directors (the "Voting Stock") voting together as a single class; or (ii) by the
                ------------  
affirmative vote of a majority of the remaining directors then in office, even
though less than a quorum of the Board of Directors. Newly created directorships
resulting from any increase in the number of directors shall, unless the Board
of Directors determines by resolution that any such newly created directorship
shall be filled by the stockholders, be filled only by the affirmative vote of
the directors then in office, even though less than a quorum of the Board of
Directors. Any director elected in accordance with the preceding sentence shall
hold office for the remainder of the full term of the class of directors in
which the new directorship was created or the vacancy occurred and until such
director's successor shall have been elected and qualified.

          (ii)   There shall be no right with respect to shares of stock of the
Corporation to cumulate votes in the election of directors.

          (iii)  Any director, or the entire Board of Directors, may be removed
from office at any time (i) with cause by the affirmative vote of the holders of
at least a majority of the voting power of the then-outstanding shares of the
Voting Stock, voting together as a single class; or (ii) without cause by the
affirmative vote of the holders of at least 66-2/3% of the voting power of the
then-outstanding shares of the Voting Stock.


                                  ARTICLE VII

     No action shall be taken by the stockholders of the Corporation other than
at an annual or special meeting of the stockholders, upon due notice and in
accordance with the provisions of the Corporation's bylaws.

                                 ARTICLE VIII
                                        
     The Corporation reserves the right to amend, alter, change or repeal any
provision contained in this Amended and Restated Certificate of Incorporation,
in the manner now or hereafter prescribed by statute, and all rights conferred
upon stockholders herein are granted subject to this reservation.

                                  ARTICLE IX
                                        
     The Board of Directors of the Corporation is expressly authorized to make,
alter or repeal Bylaws of the Corporation.

                                   ARTICLE X
                                        
     Meetings of stockholders may be held within or without the State of
Delaware, as the Bylaws may provide. The books of the Corporation may be kept
(subject to any provision

                                      -3-

 
contained in the statutes) outside the State of Delaware at such place or places
as may be designated from time to time by the Board of Directors or in the
Bylaws of the Corporation.

                                  ARTICLE XI
                                        
     The Corporation shall have perpetual existence.

                                  ARTICLE XII

     (A)  To the fullest extent permitted by the General Corporation Law of
Delaware, as the same may be amended from time to time, a director of the
Corporation shall not be personally liable to the Corporation or its
stockholders for monetary damages for breach of fiduciary duty as a director.
If the General Corporation Law of Delaware is hereafter amended to authorize,
with the approval of a corporation's stockholders, further reductions in the
liability of the Corporation's directors for breach of fiduciary duty, then a
director of the Corporation shall not be liable for any such breach to the
fullest extent permitted by the General Corporation Law of Delaware, as so
amended.

     (B)  Any repeal or modification of the foregoing provisions of this Article
XII shall not adversely affect any right or protection of a director of the
Corporation with respect to any acts or omissions of such director occurring
prior to such repeal or modification.

                                 ARTICLE XIII
                                        
     (A)  To the fullest extent permitted by applicable law, the Corporation is
also authorized to provide indemnification of (and advancement of expenses to)
such agents (and any other persons to which Delaware law permits the Corporation
to provide indemnification) though bylaw provisions, agreements with such agents
or other persons, vote of stockholders or disinterested directors or otherwise,
in excess of the indemnification and advancement otherwise permitted by Section
145 of the Delaware General Corporation Law, subject only to limits created by
applicable Delaware law (statutory or non-statutory), with respect to actions
for breach of duty to a corporation, its stockholders, and others.

     (B)  Any repeal or modification of any of the foregoing provisions of this
Article XIII shall not adversely affect any right or protection of a director,
officer, agent or other person existing at the time of, or increase the
liability of any director of the Corporation with respect to any acts or
omissions of such director, officer or agent occurring prior to such repeal or
modification."

                                  *    *    *

                                      -4-

 
     The foregoing Amended and Restated Certificate of Incorporation has been
duly adopted by this Corporation's Board of Directors and stockholders in
accordance with the applicable provisions of Section 228, 242 and 245 of the
General Corporation Law of the State of Delaware.

     Executed at Santa Clara, California, on ____________________, 1999.

 
                                    ____________________________________________
                                    Rick M. McConnell,
                                    Vice President and Chief Financial Officer
 
 
                                    ____________________________________________
                                    Mark A. Medearis,
                                    Secretary

                                      -5-