This feature is sometimes called anti-tromboning. In order for this to work, the CallManager and the ISDN switch it is connected to need to both be speaking a signaling protocol which supports this feature, where the switch will tandem the call rather than 2 B channels being tied up on the DE-30+.
Currently this is not available in Cisco CallManager. In a later version, the Q.SIG protocol for ISDN will be supported, which does have provisions for providing this functionality, but I do not believe that CallManager will initially support this.
You can contact your Cisco account team so that they can drive the issue with marketing to try and get the functionality added. But I do not know the timeframe that this may require.
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...