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Connectivity checks fail if you use Office Communicator 2007 R2 together with a third-party implementation of MS-ICE 2.0
Article ID: 978718 - View products that this article applies to.
You use Microsoft Office Communicator 2007 R2 together with a third-party implementation of Interactive Connectivity Establishment (ICE) Extensions 2.0 (MS-ICE 2.0). However, connectivity checks fail.
This issue is caused by an incorrect fingerprint in the implementation of MS-ICE 2.0 on a computer that is running Office Communicator 2007 R2.
To resolve this issue, apply the following update:
(http://support.microsoft.com/kb/976135/ )Description of the Communicator 2007 R2 cumulative update: January 2010
For more information about MS-ICE 2.0, visit the following Microsoft Web site: