Running CCM 3.3 using 2561XM router as a gateway. When making a call to a number that is not in service, I do not get the message stating that the number is not in service, it just disconnects. I have included the Q931 trace for the call.
Which basically says it's to do with progress indicators.
No Busy Tone or Announcement Message Received when Placing VoIP Outbound Calls
A Cisco IP phone (CallManager scenario) or POTS phone (VoIP Toll-Bypass scenario) does not hear a busy tone or announcement message from the PSTN network.
Configure the Cisco IOS global configuration command voice call convert-discpi-to-prog (Cisco IOS Software Release 12.2(1) and later). This command converts an inbound ISDN disconnect message with a PI to a H.225 progress message with the same PI value. This command can help when an announcement is played on the terminating PSTN side, but the calling party does not hear the response.
I'm currently working on a call disconnection issue, and have been advised by TAC that the CM Service Parameter: "Retain Media On Disconnect With PI For Active Call" when set to 'false'(default), CM will tear the call down immediately.
This parameter was only made available based on CSCea75653 resloved in 03.3(02)ES27.
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...