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Article ID: 2620575 - Last Review: November 21, 2011 - Revision: 1.0

SYMPTOMS

Consider the following scenario:
  • You have a telephone that is running Microsoft Lync 2010 Phone Edition.
  • The telephone is powered by a Power over Ethernet (PoE) switch that supports Link Layer Discovery Protocol (LLDP).
  • You wake up the telephone from the system idle power mode.
In this scenario, the telephone restarts.

Note Whether the telephone restarts depends on the PoE switch that is used.

CAUSE

This issue occurs because the telephones use LLDP to require a larger power value than the power value that is given by the PoE switch. Therefore, the telephone restarts to reset the port.

RESOLUTION

To resolve this issue, install the following cumulative update:

For Polycom CX700 and LG-Nortel IP Phone 8540 telephones:
2636066  (http://support.microsoft.com/kb/2636066/ ) Description of the cumulative update for Lync 2010 Phone Edition for Polycom CX700 and LG-Nortel IP Phone 8540: November 2011


For Polycom CX500, Polycom CX600 and Polycom CX3000 telephones:
2636067  (http://support.microsoft.com/kb/2636067/ ) Description of the cumulative update for Lync 2010 Phone Edition for Polycom CX500, Polycom CX600, and Polycom CX3000: November 2011


For Aastra 6721ip and Aastra 6725ip telephones:
2636068   (http://support.microsoft.com/kb/2636068 / ) Description of the cumulative update for Lync 2010 Phone Edition for Aastra 6721ip and Aastra 6725ip: November 2011


For HP 4110 and HP 4120 telephones:
2636069   (http://support.microsoft.com/kb/2636069 / ) Description of the cumulative update for Lync 2010 Phone Edition for HP 4110 and HP 4120: November 2011



Keywords: 
kbqfe kbfix kbhotfixrollup kbexpertisebeginner kbsurveynew KB2620575
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