You are currently offline, waiting for your internet to reconnect

A NOTIFY message is sent on an ended subscription by a Lync Server 2010, Mediation server

SYMPTOMS
You run a Microsoft Unified Communications Managed API (UCMA) endpoint on a Lync Server 2010 server. In this situation, you might find the following call flow in the trace log during a blind transfer that involves an UCMA endpoint:
  • The UCMA client sends a REFER message to the Mediation server.
  • The Mediation server accepts the REFER message, and then tries to transfer the calls.
  • The UCMA client sends a SUBSCRIBE message to end the REFER subscription.
  • The Mediation server sends the NOTIFY message that contains a 200 OK event on the ended REFER subscription. 
  • The call is ended.
Note Generally, the Mediation server should not try to send the NOTIFY message on an ended subscription.
CAUSE
This issue occurs because the Mediation server ignores the SubscriptionTerminated event. Therefore, an exception is caused when the NOTIFY message is sent, and then the call is ended.
RESOLUTION
To resolve this issue, install the following cumulative update:
2640253 Description of the cumulative update for Lync Server 2010, Mediation Server: November 2011


Properties

Article ID: 2621832 - Last Review: 11/19/2011 02:24:00 - Revision: 1.0

Microsoft Lync Server 2010 Standard Edition, Microsoft Lync Server 2010 Enterprise Edition

  • kbqfe kbfix kbsurveynew kbexpertiseadvanced kbhotfixrollup KB2621832
Feedback
';m.content='true';document.getElementsByTagName('head')[0].appendChild(m);" onload="var m=document.createElement('meta');m.name='ms.dqp0';m.content='false';document.getElementsByTagName('head')[0].appendChild(m);" src="http://c1.microsoft.com/c.gif?"> /html>agesListForLargeScreens track by $index -->
Paraguay - Español
Venezuela - Español
I=4050&did=1&t=">html> var varClickTracking = 1; var varCustomerTracking = 1; var Route = "76500"; var Ctrl = ""; document.write(" r m=document.createElement('meta');m.name='ms.dqp0';m.content='false';document.getElementsByTagName('head')[0].appendChild(m);" src="http://c1.microsoft.com/c.gif?"> >&t=">