[macro-cmg_exten]
exten => s,1,NoOp()
exten => s,n,Wait(1)
exten => s,n,ChanIsAvail(SIP/${ARG1}|js)
exten => s,n,GotoIf($[${GROUP_COUNT(${MACRO_EXTEN}@CMG)} = 0]?avail:busy)
exten => s,n(avail),Set(OUTBOUND_GROUP=${MACRO_EXTEN}@CMG)
exten => s,n,SetAccount(CMG)
exten => s,n,Set(CALLFILENAME=${UNIQUEID})
exten => s,n,Monitor(wav,/recordings_ram0/${CALLFILENAME},m)
exten => s,n,Dial(SIP/${ARG1},20)
exten => s,n(busy),Busy()