Topic Last Modified: 2011-04-06

This procedure changes the voice routes to use the Lync Server 2010 Mediation Server, instead of the legacy Office Communications Server 2007 Mediation Server.

Before running the procedure that follows, ensure that your public switched telephone network (PSTN) gateway is certified to work with Lync Server 2010 Mediation Server. Additionally, ensure that gateway is updated to the latest firmware version. Consult your PSTN gateway manufacturer for additional information.

To successfully publish, enable, or disable a topology when adding or removing a server role, you should be logged on as a user who is a member of the RTCUniversalServerAdmins and Domain Admins groups. It is also possible to delegate the proper administrator rights and permissions for adding server roles. For details, see Delegate Setup Permissions in the Deployment documentation. For other configuration changes, only membership in the RTCUniversalServerAdmins group is required.

To change the voice routes to use the new Mediation Server
  1. Log on to the computer with an account that is a member of the RTCUniversalServerAdmins group or that is assigned to the CsVoiceAdministrator administrative role.

  2. Open a browser window, and then enter the Admin URL to open the Lync Server Control Panel. For details about the different methods you can use to start Lync Server Control Panel, see Open Lync Server Administrative Tools.

  3. In the left pane, click Voice Routing, and then click Route.

  4. Click New to create a New Voice Route.

  5. Fill in the following fields:

    • Name: Type a descriptive name of the voice route. For this document we will use W14PSTNRoute.

    • Description: Type a short description of the voice route.

  6. Skip all remaining sections until you reach Associated gateways. Click Add, select the new default gateway, and then click OK.

  7. Under Associated PSTN Usages, click Select.

  8. From the Select PSTN Usage Record page, select a record name, and then click OK.

  9. From the New Voice Route page, click OK to create the Voice Route.

  10. From the Voice Routing page, select Route.

  11. Move the newly created route to the top of the list.

  12. Remove the voice route used to route calls to the legacy Office Communications Server 2007 Mediation Server, and then click Commit.

  13. In Topology Builder, select the top-most node Lync Server 2010.

  14. From the Actions pane, click Publish Topology, and then click Next.

  15. When the Publishing wizard completes, click Finish.

    The Publishing wizard will fail if any voice routes to the legacy Office Communications Server 2007 Mediation Server exist. Ensure that all legacy voice routes have been removed before publishing.
  16. Change the PSTN gateway configuration to route inbound calls to the new Mediation Server pool.