After changing everything, have you reset the phones?
If they are all the same model, change the MAC in the configuration to FFFFFFEF from one phone which is playing the music. Now go into the config of the phone which doesnt play MOH and enter the MAC from the working phone. Afterwards change the MAC from the phone FFFFFFEF to the MAC of the phone which hasn't played the music. Repeat the test. If it is a configuration problem, then the phones have swapped their behavior.
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...