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Conferencing Interoperability Activity Group

The IMTC Conferencing Interoperability Activity Group (COIP AG) provides a forum for IMTC member companies to cooperate and pool resources on H.323, security, quality of service and other issues of common interest. This AG focuses on multimedia telecommunications applications including conferencing, video, multipoint, etc.

Additional information may be obtained by visiting The H.323 Forum, a website sponsored by IMTC.

What We Do

The main activities of the group are

  1. Organize interoperability H.323 and other technical test efforts (both virtual and face-to-face). This would be done in cooperation & coordination with both the SIP AG and with SIPit (where practical).
  2. Provide a forum for members to agree on feature/protocol profiles for H.323 and other applications as needed.
  3. Educate members on most recent developments in H.323 and other standards and market evolution.


The IMTC collaborates and has liaison relationships with several standards development organizations.

Learn about the liaison activities this group is maintaining with external organizations.

How to Join

To subscribe to the Activity Group’s email list, scroll to the top of the page and click on the “Member Login” button to access the member portal, then select “Join a Work Group”, select the Activity Group and click on the “subscribe” link. You will receive a subscription confirmation in your email. If you have forgotten your password, click on the “Forgot/Need Password” on the sign in screen and it will be emailed to you. If you have not set up a user name and password or have any questions, contact the IMTC help desk at This email address is being protected from spambots. You need JavaScript enabled to view it." style="color: #37296d;">This email address is being protected from spambots. You need JavaScript enabled to view it..

Member Companies



For discussion on the Conferencing Interoperability AG or H.320, join the mailing list