You can configure transport and authentication requirements for Office Communicator Phone Edition devices in the pool.

To configure security settings for Microsoft Office Communicator Phone Edition

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

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

    • If you are configuring a Standard Edition server, expand Standard Edition Servers, right-click the Standard Edition pool that you want to configure (not the server itself but the pool-level node for that server), point to Properties, and then click Front End Properties.

    • If you are configuring an Enterprise Edition pool, expand Enterprise Pools, expand the pool that you want to configure, right-click Front Ends, and then click Properties.

  3. On the Voicetab, click Configure.

  4. In the Advanced Voice Optionsdialog box, under SIP security, specify the SIP security mode. The default setting is High.