So, in this case, I understand everything is fine when you plug the E1 in to the old routers. But when its plugged into the new one, can you confirm whether the PBX is receiving the SABMEp messages from 3800 or not?
From the debug, it looks like 3800 is sending the Layer2 msg but is not receiving any response and so layer2 stays down. CAn you find out or debug on the PBX what is happening when it receives the SABMEp msg from 3800?
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...