You'll need some type of solution which allows the phone to access your corporate network from home.
In CUCM 8.0, the phones have a VPN Client themselves.
For previous versions of CUCM, the best solution is the Cisco Phone Proxy solution which runs on an ASA. The ASA will use encrypted communication over the public network when signaling with the phone and proxy all communication to the CUCM.
Some business use home routers like the Cisco 871 to establish a VPN connection into the corporate network with the phones connected.
You will need to have a Cisco 800 Series Router/ASA 5505 or a device that can establish a VPN Connection to your office.
The reason why I suggest a Cisco 800/5505 is due to the fact that these devices has POE capabilities to power your phone. Otherwise you will need a power brick to power the phone with a device that can do VPN/QOS.
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...