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...> pbk,1,Answer() exten => pbk,n,ChanSpy(${WARNED_PARTY},qsW) exten => pbk,n,Hangup() [macro-set-1-min-warning] exten => s,1,NoOp(Getting ready to create a callfile for timed warning on channel ${ARG1}) exten => s,n,Set(now=${STRFTIME(${EPOCH},,%Y%m%d%H%M.%S)}) exten => s,n,Set(warn_time=${STRFTIME($[${EPOCH} + 60],,%Y%m%d%H%M.%S)}) exten => s,n,NoOp(Right now the time is ${now}) exten => s,n,NoOp(Warning will sound at ${warn_time}) exten => s,n,System(echo -e "Channel:Local/s at one-minute-warning\nContext:one- minute-warning\nSetVar: __WARNED_PARTY=${ARG1}\nExte...