Symptoms

Consider the following scenario:

  • You deploy the Enterprise Voice feature in a Microsoft Lync Server 2013 environment.

  • You configure the IP private branch exchange (PBX) gateway to fork an incoming public switched telephone network (PSTN) call to an IP telephone and a Lync client.

  • You configure two users (user A and user B) in the environment.

  • User A makes a PSTN call to user B. Then, the IP telephone and Lync client of user B are ringing.

  • User B answers the call by using the IP telephone.

In this scenario, user B receives an incorrect missed call notification in the Lync client.

Cause

This issue occurs because Mediation Server deals with the SIP reason header incorrectly, and then generates a missed call notification.

Resolution

To resolve this issue, install the following cumulative update:

2937310 August 2014 Cumulative Update 5.0.8308.738 for Lync Server 2013 (Front End Server and Edge Server)

Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

What affected your experience?

Any additional feedback? (Optional)

Thank you for your feedback!

×