"not available to take the call"? Are you sure that's what it says? Could it be "I'm sorry, I can't talk to you now"? by any chance? If so, that's the failsafe conversation that will kick in if something pulls the rug out from under us (typically access to a user's mailstore is flailing or so something of the kind).
When this happens one or more error/warning messages is always logged in the application event log. Can you look in there and see if there's anything of interest when you do this?
What happens if you call into Unity directly from a phone that's not a subscriber? Same message or does this only happen on login?
SIP traces provide key information in troubleshooting SIP Trunks, SIP
endpoints and other SIP related issues. Even though these traces are in
clear text, these texts can be gibberish unless you understand fully
what they mean. This document attempts to br...
Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
questions and it will render the proper jabber-config.xml file for you
to copy/paste. There is built in logic to verif...
[toc:faq]CUCM Database Replication is an area in which Cisco customers
and partners have asked for more in-depth training in being able to
properly assess a replication problem and potentially resolve an issue
without involving TAC. This document discusse...