Playing beeping noise during recording

Asterisk Asterisk Support
1

I have already setup the recording of a call,

[macro-automon]
exten => s,1,Set(MONITOR_FILENAME=${STRFTIME(${EPOCH},%Y%m%d-%H%M%S)}-${CALLERID(num)})
exten => s,n,Playback(beep) ; optional - hear when recording starts
exten => s,n,MixMonitor(${MONITOR_FILENAME}.wav49,b)

exten => xxxxx,1,Macro(automon) ; start monitor
exten => xxxxx,n,Dial(SIP/${EXTEN})

But I need to know how to get that annoying beep to play every 15 seconds, like the professional lines.

Thanks for your help,
Tom

2

Although there are probably hacks (see threads about playback during DTMF) this really requires development of a new audio hook module.