[macro-record-outbound]
exten => s,1,AGI(set-timestamp.agi)
exten => s,2,SetVar(CALLFILENAME=${ARG1}${timestamp}-${ARG3}-${ARG2})
exten => s,3,Monitor(wav,${CALLFILENAME})

[macro-record-cleanup]
; wmix - wavetools-1.0 (http://tph.tuwien.ac.at/~oemer/tgz/wavetools-1.0.tgz)
exten => s,1,SetVar(MONITORDIR=/var/spool/asterisk/monitor)
exten => s,2,GotoIf($[${CALLFILENAME} = ${FOO}]?5:3)
exten => s,3,System(/usr/local/bin/wmix ${MONITORDIR}/${CALLFILENAME}-in.wav ${MONITORDIR}/${CALLFILENAME}-out.wav > ${MONITO
RDIR}/${CALLFILENAME}.wav)
exten => s,4,System(/bin/rm ${MONITORDIR}/${CALLFILENAME}-in.wav ${MONITORDIR}/${CALLFILENAME}-out.wav)
exten => s,5,NoOp