; *52 - Selective Call Waiting  Deactivate
exten => *52,1,DBdel(${DB(SCW/${CALLERIDNUM})})
exten => *52,n,DBdel(${DB(SCWN/${CALLERIDNUM})})
exten => *52,n,Answer
exten => *52,n,Wait(1)
exten => *52,n,Playback(deactivated)
exten => *52,n,Hangup
;
; *53 - Selective Call Waiting Activate
exten => *53,1,Set(${DB(SCW/${CALLERIDNUM}=YES)})
exten => *53,n,Playback(activated)
exten => *53,n,Hangup
;
; *54 - Selective Call Waiting Number 
exten => _*54.,n,Set(${DB(SCWN/${EXTEN:3}=${EXTEN})})
exten => _*54.,n,Answer
exten => _*54.,n,Wait(1)
exten => _*54.,n,Playback(selective-call-waiting)
exten => _*54.,n,Playback(for)
exten => _*54.,n,Playback(extension)
exten => _*54.,n,SayDigits(${CALLERIDNUM})
exten => _*54.,n,Playback(is-set-to)
exten => _*54.,n,SayDigits(${EXTEN:3})