Issue with CUCM 7.1.5 and Lync 4.0

[Patricio Vega de la Llosa]

Hello,

There's a client having the following issues:

1) On an incoming call, this will ring (or be detected) on the IP Phone or on the Lync but not symultaneously as it should be. It happens either if a call is made from an IP Phone or from the Lync. If they reset the configuration, it will fix the problem temporarily. I hope this explanation is clear.

2) Echo issues between IP Phone-Lync and Lync-Lync.

The client says they made a network diagnosis and they didn't find any problems.

CUCM: 7.1.5.31900-3

Lync Server 2010  4.07577.0

Lync Client 2010    4.0.7577.4087

Anybody has any clues on how to resolve these issues?

Patricio

[Jonathan Schulenberg]

1. Has this been configured in accordance with the Microsoft Lync Server 2010 Standard Edition using Direct SIP to Cisco Unified Communications Manager 8.5(1) Simultaneous Ring Feature guide? I'm guessing not.
2. Echo can only be introduced at the calling/called device in an IP phone call, not by the network. The most common problem is a laptop built-in microphone/speakers not performing echo cancellation.

Please remember to rate helpful responses and identify helpful or correct answers.

[Aaron Harrison]

Hi

Good advice (+5)... also I seem to recall Lync has some neat endpoint reports - it collects metrics on echo and other local client issues (pc performance, audio device isses etc) and makes them available on the monitoring server.

Tell your client to provide those reports for the problem endpoints.

Aaron