In a Standard Edition server deployment or an Enterprise pool in a consolidated configuration, the A/V Conferencing Server, if deployed, is collocated with the Front End Server, so the A/V Conferencing Server uses the certificate configured for the Front End Server. For an Enterprise pool in an expanded configuration, you must configure the certificate for the A/V Conferencing Server separately.

This certificate is usually set up in the Certificate Wizard during Standard Edition server or Enterprise pool deployment. If you want to change the certificate, you can do either of the following:

Any modifications you make are only applied to future connections—existing connections continue to use the old certificate as long as the connection continues.

To configure a certificate for an A/V Conferencing Server

  1. Open the Office Communications Server 2007 R2 snap-in.

  2. In the console tree, expand the forest node, and then do one of the following:

    • For an Enterprise pool, expand Enterprise pools, right-click the server, click Properties, and then click A/V Conferencing Properties.

    • For a Standard Edition server, expand Standard Edition servers, right-click the server, click Properties, and then click A/V Conferencing Properties.

  3. On the Certificatetab, do one of the following:

    • To delete a certificate, click the certificate, and then click Delete Certificate.

    • To assign a new certificate, click Select Certificate.

  4. Restart the Office Communications Audio/Video Conferencing service for the change to take effect for all connections.