Where is the latest PBX compatibility list for Exchange 2010 Unified Messaging?

I had a couple of Exchange 2010 voicemail questions from a school district from northern California replacing Cisco Unity voicemail with Exchange 2010 UM.   Where can I check if my PBX has been tested with Exchange 2010 UM? We have an updated Telephony Advisor list for Exchange 2010.  You can check SIP gateways, TDM…

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