Consider the following scenario:
- You have a Microsoft Lync Server 2010 environment that has a Monitoring server installed.
- The Lync Server 2010 server interacts with an IP-Private Branch Exchange (PBX) device.
- You add two users to the environment.
- The users have the same Direct Inward Dialing (DID) number. The extensions on the DID numbers are different.
- One user makes a Public Switched Telephone Network (PSTN) call.
In this scenario, the Quality of Experience (QoE) reports cannot be delivered to the Monitoring server. Additionally, an ambiguous 485 error is logged in the trace log when the Lync Server 2010 Front-end server tries to perform a reverse name lookup on the QoE request from the Mediation server.
This issue occurs because the extension of the number is not parsed correctly on the Lync Server 2010 server.
To resolve this issue, install the following cumulative update:
Description of the cumulative update for Lync Server 2010: November 2011
For more information about the overview of the QoE Monitoring server, visit the following Microsoft website:
Article ID: 2621835 - Last Review: November 19, 2011 - Revision: 1.0
- Microsoft Lync Server 2010 Standard Edition
- Microsoft Lync Server 2010 Enterprise Edition
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