It is a best practice to have your phones and CUE in the same VLAN. In my mind, there would have to be a very compelling reason to deviate from this. That being said, I believe the statement indicating the the phones and CUE must be located on the same LAN segment is referring to the fact that having subscriber phones separated from CUE by a WAN link is unsupported as mentioned in the following link. I don't believe this is referring to separation by VLAN.
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...