I updated the scripts for capturing the audio on attempts at toll fraud through an asterisk server so there is some call progress sound before the 'wrong number' recording is played. I also switched from MixMonitor to Monitor which saves incoming and outgoing audio separately, so it is easier (for me) to check the incoming audio for interesting bits.This is what the asterisk code now looks like:
exten => _00.,1,Set(filename=${STRFTIME(${EPOCH},,%Y%m%d-%H%M%S)}) exten => _00.,n,Monitor(wav,wrongnum-${filename}) exten => _00.,n,Playback(wrong/callprogress) exten => _00.,n,Goto(wrongnumber,s,1)And you can hear what the 'caller' would hear in the attached mp3 file.
Listen to audio attachment: