Asterisk Wake Up call application

If you want to be awaken by your Asterisk PBX, here’s a simple bit of code to add in your dial plan.

Basically, you would call 9253 followed by the time the phone should ring, for exemple if you want to be awaken at 06:30am you would call 92530630 (on your dialpad WAKE0610).

This code only allows to set ONE alarm.

If you want to delete -for exemple the 0630am- alarm, you would call 6692530610 (on dialpad NOWAKE0610).

Asterisk will create a call file and put it under /var/spool/asterisk/outgoing/
How does Asterisk know when to call you ? It will check the timestamp of the call files.

Make sure you enable func_strings.so module, it is required for STRFTIME.

[Context-This-Code-Should-Go-In]

; WAKE + hour + minute : sets a wake up call
exten => _9253XXXX,1,Answer()
exten => _9253XXXX,n,Set(wakeuptime=${EXTEN:4:4})
exten => _9253XXXX,n,Set(today=${STRFTIME(${EPOCH},,%Y%m%d)})
exten => _9253XXXX,n,Set(tomorrow=${STRFTIME($[${EPOCH} + 86400],,%Y%m%d)})
exten => _9253XXXX,n,Set(now=${STRFTIME(${EPOCH},,%Y%m%d%H%M)})
exten => _9253XXXX,n,System(echo -e "Channel: SIP/${CALLERID(num)}\\nContext: WakeUp\\nExtension: 92531" > /tmp/${UNIQUEID}.call)
exten => _9253XXXX,n,GotoIf($["${today}${wakeuptime}" < "${now}"]?tomorrow:today)
exten => _9253XXXX,n(today),NoOp(Scheduling wake up call for ${CALLERID(num)} today at ${wakeuptime} / )
exten => _9253XXXX,n,System(touch -t ${today}${wakeuptime} /tmp/${UNIQUEID}.call)
exten => _9253XXXX,n,Goto(move)
exten => _9253XXXX,n(tomorrow),NoOp(Scheduling wake up call for ${CALLERID(num)} tomorrow at ${wakeuptime} / )
exten => _9253XXXX,n,System(touch -t ${tomorrow}${wakeuptime} /tmp/${UNIQUEID}.call)
exten => _9253XXXX,n(move),System(mv /tmp/${UNIQUEID}.call /var/spool/asterisk/outgoing/${wakeuptime}.${UNIQUEID}.call)
exten => _9253XXXX,n,Wait(1)
exten => _9253XXXX,n,SayNumber(${wakeuptime})
exten => _9253XXXX,n,Hangup()

; NOWAKE + hour + minute : deletes a wake up call
exten => _669253XXXX,1,Answer()
exten => _669253XXXX,n,Set(wakeuptime=${EXTEN:6:4})
exten => _669253XXXX,n,NoOp(Deleting alarm set at ${wakeuptime})
exten => _669253XXXX,n,System(rm -f /var/spool/asterisk/outgoing/${wakeuptime}*)
exten => _669253XXXX,n,Wait(1)
exten => _669253XXXX,n,Background(auth-thankyou)
exten => _669253XXXX,n,Hangup()

[WakeUp]
;;; Context for outgoing wake up calls only, well you can always call 92531 but it's rather pointless
exten => 92531,1,Answer()
exten => 92531,n,Wait(1)
exten => 92531,n,Background(hello-world)
exten => 92531,n,Wait(1)
exten => 92531,n,Hangup()