[default]
exten => s,n,Hangup

[outbound]
exten => 911,1,Dial(Zap/1/911)
exten => _X.,1,Dial(IAX2/asterisk.calvin-k10.com/${EXTEN})

[local-stations]
exten => 201,1,Dial(Zap/2,30)
exten => 202,1,Dial(Zap/3,30)
exten => 203,1,Dial(Zap/4,30)

[from-internal]
include => local-stations
include => outbound
include => default

[from-iax]
include => local-stations
exten => 911,1,Dial(Zap/1/911)
exten => _X.,1,Dial(Zap/1/${EXTEN})
include => default