Is anyone successfully using MS Live Communication server with the BES server? I cannot get any sip id's to authenticate that have a period in the sip name? For example: works perfectly but does not work. Has anyone else seen this?

BES 4.1 Sp1
Live Communication Server 2005 SP1

Just wondered if you had a sql cluster or if it was a named instance.

there are quite a few threads on this - plenty of have been successful.