This is asked some often. if you had searched before asking:
Cisco doesn't support this feature (call waiting annucation to caller), and has not announced plans to do.
Cisco will tell you that the other chocie is to received a busy singnal, (thing that will rpeved the calle to know about the missed call).They also will tell you that you canconfigure presence and/or espansion modules to monitor other extensions status.
I've created a TCL/IVR script that provides the funcionality, with the drawback of requiring an additional button on the the 'phone A' . This limitation does not exists on CME. It can be adquired at the website mentioned in my profile.
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...