[inbound]
exten => 604xxxxxxx,1,Wait,1
exten => 604xxxxxxx,2,NoOp,$(CALLERIDNAME)
exten => 604xxxxxxx,3,Answer
;exten => 604xxxxxxx,3,Background(pls-hold-while-try)
;exten => 604xxxxxxx,4,SetMusicOnHold(default)
exten => 604xxxxxxx,4,Dial(SIP/200,20)
exten => 604xxxxxxx,104,Voicemail(u200@default)
exten => 604xxxxxx,105,Voicemail(b200@default)
exten => 604xxxxxx,Hangup