[macro-iaxext]
exten => s,1,GotoIf([Len(${ACCOUNTCODE} != 10]?50)
exten => s,2,SetCDRUserField("LOCAL")
exten => s,3,Goto(100)

exten => s,50,SetAccount(${ARG1})
exten => s,51,SetCDRUserField("IN")
exten => s,52,Goto(100)

exten => s,100,Dial(IAX2/${ARG1},${ARG2})
exten => s,102,VoiceMail(${ARG1})