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Article ID: 2529977 - Last Review: April 4, 2011 - Revision: 1.0

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This article describes the cumulative update for Microsoft Lync 2010 Phone Edition for the Polycom CX500, Polycom CX600, and Polycom CX3000 model phones that is dated April, 2011.


Issues that this update fixes

This cumulative update fixes the following issues:
  • 2513704  ( ) The 24-hour clock time format changes after you change the language on a telephone that is running Lync 2010 Phone Edition
  • 2517606  ( ) Improvements for Common Area Phones in Lync 2010 Phone Edition when a Common Area Phone does not have a headset
  • 2517622  ( ) Describes the updated prompt messages for Lync 2010 Phone Edition that has a TTY device
  • 2517681  ( ) A telephone unexpectedly locks after you set the "EnforcePhoneLock" option to "False" in Lync 2010 Phone Edition
  • 2517720  ( ) The icon text in the "In Call" screen overlaps when you join a meeting by using a telephone that is running Lync 2010 Phone Edition
  • 2517728  ( ) "Connection to Microsoft Exchange is unavailable because you signed in directly on the phone." error message on a telephone that is running Lync 2010 Phone Edition


Update information

The following file is available for download from the Microsoft Download Center:
Collapse this imageExpand this image
Download the UCUpdates.exe package now. (
Release Date: April 2011

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591  ( ) How to obtain Microsoft support files from online services
Microsoft has scanned this file for viruses. Microsoft uses the most current virus-detection software that is available on the date that files are posted. This file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.


There are no prerequisites for installing this hotfix.

Restart requirement

You may have to restart the computer after you apply this hotfix.

Hotfix replacement information

This update does not replace a previously released update.

Registry information

To use one of the hotfixes in this package, you do not have to make any changes to the registry.

File information

This update package contains an image that can be used to update the following devices that run Lync 2010 Phone Edition:
  • Polycom CX500
  • Polycom CX600
  • Polycom CX3000
This image is version 7577.250. 


For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684  ( ) Description of the standard terminology that is used to describe Microsoft software updates

  • Microsoft Lync 2010 Phone Edition, when used with:
    • Microsoft Lync 2010 Phone Edition for Polycom CX500, Polycom CX600 and Polycom CX3000
kbqfe kbfix kbexpertiseinter kbsurveynew kbhotfixrollup atdownload KB2529977
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