Mino – The UC Guy

Microsoft Unified Communications Blog

COMO Error “You must update your version of Communicator Mobile before you can sign in”

Posted by Mino on October 12, 2008

1. Check the Client Version Filter defined in your OCS environment (on all
Front End Servers and Access Edge Servers):
a) Go to the Start Menu > Programs > Office Communications Server 2007
b) Expand Standard/Enterprise Edition Servers node
c) Right Click on the pool node. Choose Application Properties > Client
Version Filter
d) In the Client Version Filter window, highlight the line with a reference
to CPE
You may now either
a. Update the version number to block 2.0.324.x and below
Note: You will have to update this if you want to control the version of
the client in use
Or
b. Delete the line with CPE 2.0.xxxx <= Block by clicking Remove.
Note: You will have no control over the version of the client in use
e) Apply your changes
f) Restart RTCSRV service
For the Access Edge server launch ClientVersionFilterConfig.exe under
\Program Files\Common Files\Microsoft Office Communications Server 2007

Detailed steps you can see Configuring Client Version Filtering
http://technet.microsoft.com/en-us/library/bb936607(TechNet.10).aspx

2. Apply latest OCS update package on your OCS front end server and reboot
the serve to test:
952783   Description of the update package for Communications Server 2007:
August 2008
http://support.microsoft.com/default.aspx?scid=kb;EN-US;952783

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