The Telephony Conferencing component is responsible for audio conferencing provider (ACP) integration. During installation, the Front End Server is configured with default settings for phone conferencing, which specify the IP address and port on which the Front End Server receives messages. If you change the settings, ensure that the settings you choose do not conflict with settings for other Office Communications Server components that are running on the same computer.

The Telephony Conferencing component does not support mixing Voice over IP (VoIP) and public switched telephone network (PSTN) in the same call.

On the Telephony Conferencingtab, you can configure the IP address and the SIP listening port used for phone conferencing:

You also enable telephony for individual users. For details, see Configuring Telephony for Individual Users.

To configure telephony conferencing

  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, expand the pool, expand Front Ends, right-click the Front End Server that you want to configure, click Properties, and then click Front End Properties.

    • For a Standard Edition server, expand Standard Edition servers, expand the pool, right-click the server, click Properties, and then click Front End Properties.

  3. Click the Telephony Conferencingtab.

  4. In the IP addressbox, click the IP address that you want to use. The default is All, which is recommended if IP addresses in your environment are assigned dynamically or if your environment will use the FQDN to refer to the server instead.

  5. In the SIP listening portbox, type the port number that you want to use. The default value is 5064.