I'm using a Cisco CUBE to integrate Exchange 2010 UM with multiple CUCM clusters (various versions). The CUCM clusters are using H.323 to the CUBE and the CUBE is SIP to Exchange UM. I have inbound and outbound calls for voicemail and Auto Attendants...

I'm working on a project to replace several Unity 4.0(5) servers with Exchange 2010 Unified Messaging. I'm working with the Cisco CUBE, which has H.323 connections to several different CallManager 4.1(3) clusters and a single SIP trunk to an Exchange...