We use 2924s, 3524s, 3550s, and 3750s, so I suspect the first 3 you list will support VoIP just fine. Don't know anything about the 4006. I think the only real difference between VoIP and any other application is the configuration of the "voice VLAN" and Class of Service assignment when another device is connected to the switchport in the IP phone. Different switches seem to have different ways of configuring this, but the functionality is supported on all the switches I mentioned. Power over Ethernet (PoE) is another issue, but there are other ways to power your IP phones if the switches don't support PoE.
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...