I've been trying to figure out whether it's possible to configure on a Cisco Voice Gateway DTMF relay over SS7/ISUP. Let's say we've got the packet side with SIP dial peers, and they are generating DTMF, and using SIP Notify to send DTMF to the Voice Gateway, connecting them to the PSTN. Instead of playing DTMF inband, can the voice gateway use CED or some other SS7/ISDN means to relay DTMF to the remote end on the PSTN?
I am actually looking for DTMF relay on the PSTN side, rather than on the packet side (where CallManager, SIP and H.3232 reside). ISDN ISUP and other SS7 protocols support Caller Entered Digits (CED) and potentially other atributes that they can carry as part of ISUP and other SS7 signalling, rather than in-band. I am looking for a way to encapsulate packet side DTMF into ISUP or other ISDN messages on the PSTN.
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...
[toc:faq]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 discusse...