This may seem like a stupid question, but is there a way to kludge PSTN disconnect tone detection in Asterisk, when the disconnect tone is fed back purely in the media of a SIP trunk? In other words, no Zapata interface. I need to troubleshoot very rare and sporadic call failures from a SIP provider that are clearly originating from TDM switches and this would be a nice way to trap them. -- Alex Balashov Evariste Systems Web : http://www.evaristesys.com/ Tel : +1-678-954-0670 Direct : +1-678-954-0671