User cannot download contact list by using a mobile device in Lync Server 2010

Article ID: 2796754 - View products that this article applies to.
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Consider the following scenario:
  • You deploy Microsoft Lync Server 2010 mobility service in a Lync Server 2010 environment.
  • A user signs in to a Lync server by using a mobile device.
  • The user has a federated contact for a Cisco Tandberg device in the contact list.
In this scenario, the user cannot retrieve the contact list by using the mobile device. Therefore, the user's contact list is empty.


This issue occurs because Lync mobility service incorrectly waits for a notification and encounters a time-out error when it processes the federated contact for a Tandberg device.


To resolve this issue, install the following cumulative update:
2847888 Description of the cumulative update for Lync Server 2010, Unified Communications Managed API 3.0 Runtime: July 2013

More information

For more information about federated contacts, go to the following Microsoft website:
General information about federated contacts
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.


Article ID: 2796754 - Last Review: July 12, 2013 - Revision: 1.0
Applies to
  • Microsoft Lync Server 2010 Enterprise Edition
  • Microsoft Lync Server 2010 Standard Edition
  • Microsoft Unified Communications Managed API v3.0 Core Runtime
kbqfe kbfix kbsurveynew kbexpertiseadvanced KB2796754

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