I have a call handler in Unity 5.0 that lets you opt out of the greeting by dialing an extension.
Everything works fine, except: The outside caller who opts out by dialing the extension is released to CUCM 6.1.
The extension (1234) they dialed is set up to go to voicemail 25 seconds, or about
5 rings. The caller only hears 2 rings. Each ring has an extended period of silence between the two rings.
The person receving the call hears all 5 rings. These are outside calls coming in through a 2651 series gateway MGCP T1 port.