Article ID: 2688319 - View products that this article applies to.
Consider the following scenario:
This issue occurs because there is a problem in the logic that is used to retry the sign-in process in common area phones. Therefore, the common area phone does not try to reconnect to the server.
To resolve this issue, install the appropriate cumulative update for the telephone that you are using:
For HP 4110 and HP 4120 telephones
(http://support.microsoft.com/kb/2672743/ )Description of the cumulative update for Lync 2010 Phone Edition for HP 4110 and HP 4120: February 2012
For Polycom CX500, Polycom CX600, and Polycom CX3000 telephones
(http://support.microsoft.com/kb/2672349 / )Description of the cumulative update for Lync 2010 Phone Edition for Polycom CX500, Polycom CX600, and Polycom CX3000: February 2012
For Aastra 6721ip and Aastra 6725ip telephones
(http://support.microsoft.com/kb/2672352/ )Description of the cumulative update for Lync 2010 Phone Edition for Aastra 6721ip and Aastra 6725ip: February 2012
To work around this issue, use one of the following steps.
Restart the phone.
Press Cancel, and then sign in to the phone by using the common area phone account.
For more information about how to configure a common area phone, visit the following Microsoft website:
How to configure a common area phoneThe 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.