"SIP/2.0 408 Request Timeout" error message is incorrectly logged on a Mediation server in a Lync 2010 environment

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Article ID: 2517761 - View products that this article applies to.
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Assume that an OperationTimeoutException exception occurs on a PSTN gateway in a Lync Server 2010 environment. This environment has a Mediation server and a PSTN gateway deployed. In this situation, a SIP/2.0 408 Request Timeout error message is logged on the Mediation server. Therefore, the Outbound Routing application on Lync Server 2010 does not try to route the call.

Note A 504 Gateway Timeout error message should be logged on the Mediation server instead.


To resolve this issue, install the following cumulative update:
2502810 Description of the cumulative update for Lync Server 2010, Mediation Server: April 2011


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


Article ID: 2517761 - Last Review: April 20, 2011 - Revision: 1.0
  • Microsoft Lync Server 2010 Standard Edition
  • Microsoft Lync Server 2010 Enterprise Edition
kbqfe kbfix KB2517761

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