I have installed Viewmail for Outlook (7.0(2)) in Outlook 2003 and am using Unity 5.0(1) (Unified Messaging) on Exchange 2003 with CUCM 6.1(3a). The VMO works fine with the PC as the playback device, but when the phone is selected, it takes ~ 15 seconds for the phone to ring and then it only rings for a moment before VMO reporting the phone did not answer. If you manage to answer in time the VMO plays the message just fine. Any thoughts? Thanks.