Applies to: Exchange Server 2010 SP3, Exchange Server 2010 SP2

Topic Last Modified: 2012-07-23

You can specify the startup mode for the Microsoft Exchange Unified Messaging service on a Unified Messaging (UM) server. By default, the UM server will startup in TCP mode, but if you are using Transport Layer Security (TLS) to encrypt Voice over IP (VoIP) traffic you must configure the UM server to use TLS or Dual mode. A UM server can be added to UM dial plans that have different security settings. If the UM server has been added to dial plans with different security settings, you should select Dual mode. If you change the startup mode, you must restart the Microsoft Exchange Unified Messaging service for the change to take effect

Important:
When Exchange Server 2010 is installed, static Windows Firewall rules are added for Exchange. If you change the TCP ports that are used by the Unified Messaging server role, you may also need to reconfigure the Windows Firewall rules to allow Unified Messaging to work correctly.

Looking for other management tasks related to UM servers? Check out Managing Unified Messaging Servers.

Use the EMC to configure the startup mode

You need to be assigned permissions before you can perform this procedure. To see what permissions you need, see the "UM server" entry in the Unified Messaging Permissions topic.

  1. In the console root, navigate to Server Configuration > Unified Messaging.

  2. In the result pane, click to select the Unified Messaging server you want to set up.

  3. In the action pane, click Properties.

  4. On the UM Settings tab, in the Startup Mode drop-down list, select one of the following settings:

    1. TCP   Use this setting if the UM server is being added to only UM dial plans that are set to Unsecured but won't be added to dial plans that are set to SIP Secured or Secured. In TCP mode, the UM server will only listen on TCP port 5060 for SIP requests. By default, the UM server will startup in TCP only mode.

    2. TLS   Use this setting if the UM server is being added to UM dial plans that are set to SIP Secured or Secured but won't be added to dial plans that are set to Unsecured. In TLS mode, the UM server will only listen on TCP port 5061 for SIP requests.

    3. Dual   Use this setting if the UM server is being added to UM dial plans that have different security settings. In Dual mode, the UM server can listen on ports 5060 and 5061 simultaneously.

      Note:
      If you change the startup mode, you must restart the Microsoft Exchange Unified Messaging service for the change to take effect.
  5. Click OK.

Use the Shell to configure the startup mode

You need to be assigned permissions before you can perform this procedure. To see what permissions you need, see the "UM server" entry in the Unified Messaging Permissions topic.

This example sets the startup mode for a UM server named MyUMServer1 to Dual mode.

Copy Code 
Set-UMServer -Identity MyUMServer1 -UMStartUpMode Dual

This example sets the startup mode for a UM server named MyUMServer1 to TCP mode.

Copy Code 
Set-UMServer -Identity MyUMServer1 -UMStartUpMode TCP

For more information about syntax and parameters, see Set-UMServer.

Other Tasks

After you configure the startup mode, you may also want to: