I had a 7940 registered over a PIX 515-->3005 VPN tunnel to a CM 3.0.(11). I used the phone on a regular basis for incoming and outbound calls. After I upgraded to CM 3.1 (tried 3.1.1 and 3.1.2c) the phone no longer works. It registers/unregisters at will, the buttons don't work, lights blink randomly, and it makes a "squeeking" noise.
What has significantly changed in the signalling traffic from CM 3.0 to 3.1? What would cause this traffic to not be forwarded across the tunnel?
I believe you are correct. After our upgrade, our phones on the other side of the VPN tunnell did the same things, and we got it to work when we entered the "NO fixup prot skin ... " command - do this, reboot your phones and all should be 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...