This cumulative update KB3050585 resolves a list of issues. This cumulative update contains an image that can be installed on Aastra 6721ip and Aastra 6725ip telephones. The image version is 7577.4463.
Get Cumulative Update KB3050585 for Lync Phone Edition for Aastra 6721ip and Aastra 6725ip
The cumulative update is available for download from the Microsoft Download Center:
Download the UCUpdates.exe package now.
Release Date: May 2015
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
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How to install the update
There are no prerequisites for installing this cumulative update.
You may have to restart the computer after you apply this cumulative update.
Update replacement information
This cumulative update replaces the October 2014, update for Lync Phone Edition for Aastra 6721ip and Aastra 6725ip telephones.
To use one of the cumulative updates in this package, you do not have to make any changes to the registry.
Issues that the update fixes
This cumulative update resolves the following issues:
Additionally, the cumulative update also resolves the Lync Phone Edition for Aastra 6721ip and Aastra 6725ip issues that are described in the following KB articles:
See the general information about the standard terminology that Microsoft uses to describe software updates.