So, I'd like to use our existing Avaya Magix system for voicemail with a shiny new Cisco CallManager system. We'll connect the systems with a P2P T1 and forward to the Avaya.

Am I crazy thinking that this can be done? It seems plausible, but I'm not an Avaya guy so I don't really know.

I don't really care whether or not we get MWI, so long as I can get calls routed to the right VM box.