EXHIBIT 5.1


                                 April 16, 1999


Latitude Communications, Inc.
2121 Tasman Drive
Santa Clara, CA  95054

     Registration Statement on Form S-1
     ----------------------------------

Ladies and Gentlemen:

     We have examined the Registration Statement on Form S-1, as amended, filed
by you with the Securities and Exchange Commission on February 25, 1999 (the
"Registration Statement") in connection with the registration under the
Securities Act of 1933, as amended, of a total of 3,000,000 shares of your
Common Stock (the "Shares") to be sold to the underwriters as described in the
Registration Statement for resale to the public, including an over-allotment
option to purchase 450,000 shares granted to the underwriters.  As your counsel
in connection with this transaction, we have examined the proceedings taken and
are familiar with the proceedings proposed to be taken by you in connection with
the sale and issuance of the Shares.

     It is our opinion that upon conclusion of the proceedings being taken or
contemplated by us, as your counsel, to be taken prior to the issuance of the
Shares, and upon completion of the proceedings being taken in order to permit
such transactions to be carried out in accordance with the securities laws of
the various states where required, the Shares when issued and sold in the manner
described in the Registration Statement will be legally and validly issued,
fully paid and nonassessable.

     We consent to the use of this opinion as an exhibit to the Registration
Statement and further consent to the use of our name wherever appearing in the
Registration Statement, including the Prospectus constituting a part thereof,
and in any amendment thereto.

                                             Sincerely,

                                             VENTURE LAW GROUP
                                             A Professional Corporation


                                             /s/ VENTURE LAW GROUP