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answerback
2004 Aug 31
0
Streaming an audio file to a Zap channel before answer
...legacy analogue pabx. I have set up voicemail for each of my DDI
numbers, and when a call comes in for the person at pabx extension 21, I
do the following:
exten => xxxx21,1,Macro(stdexten,21,Zap/g1c/21)
The c in the Dial command for Standard Extension causes the Zap channel
to not return answerbackto the calling party until the user presses a
'#' key to confirm answer. This is essential because in an
analogue-to-analogue call the only confirmation of answer is tones. I
don't want to use tone detection as it is too unrelaible and the UK
progress tones don't work well with c...