Problem with answering machines and PSTN voice mails
We are experiencing issues when we place a call to the PSTN and it is redirected to a answering machine, for example if I place a call to my cell phone and it is powered off normally it will be answered by the voice mail of my celular company, but in this case whe have two strange behaviors:
1.- the call keeps ringing like my cell phone were available.
2.- the call is connected but we are experiencing something like one way audio, we cannot hear audio from the voicemail, but checking my voice mail on my cell phone I realized that I am able to leave a message.
This two issues occours randomly and for both home answering machines and cell phones voicemails, with regular calls we have no problems.
GW 3900 - 15.1 (4) M7
The GW is connected with the CUCM via SIP, and with the PSTN with E1 R2.
Here is part of the configuration that I think could be relevant:
voice call convert-discpi-to-prog
voice service voip
no ip address trusted authenticate
allow-connections sip to sip
signaling forward unconditional
bind control source-interface Loopback0
bind media source-interface Loopback0
min-se 360 session-expires 360
voice rtp send-recv
controller E1 3/1
ds0-group 0 timeslots 1-15,17-31 type r2-digital r2-compelled ani
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...