We've got an exchange 2010 server (SP1) with one UM server in each city. One city has an issue with some users being disconnected from the voice mail system after starting to listen to their voice mail when dialing in to the VM system with their IP phone. When I checked the call logs on the UM server it shows Outlook Voice Access events at the appropriate times, but a surprising amount are of the duration 2:06. It doesn't always cut the call short at that point (sometimes sooner), but I'm worried that the time is showing 2:06 exactly with alarming regularity on the logs.
I checked the settings on the dial plan and the maximum call duration is 30 mins. Could this be a connection quality issue with the UM server? Anyone know of a way I can test this out or give me some troubleshooting advice on what to check? I'm really rather new to the UM server/exchange dynamic.