The ANN is a device in CUCM that resides on the CUCM servers, just like MOH, and it is capable of transmitting RTP.
So for IPC across VPN to be able to hear prompts from ANN, you need to allow RTP from IP of the ANN, one of the CUCM servers, to the IP of IPC across VPN.
Now, depending on the MRG/MRGL, you could have ANN from any of CUCM server allocated. So, I would suggest allow RTP from IP of all your CUCM server to the IPC over VPN. This should take care of RTP for MOH as well.
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...
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 discusses the bas...