[outgoing]
exten => _1747NXXXXXX,1,Dial(SIP/sipphone/${EXTEN})

[incoming]
include => extensions

exten => s,1,Background(welcome)
exten => s,2,Dial(SIP/1002&SIP/1005,20,r)
exten => s,3,VoiceMail(u1000@default)


[extensions]
exten => 1002,1,Dial(SIP/1002)
exten => 1005,1,Dial(SIP/1005)
exten => 8500,1,VoiceMailMain(1000)


[users]
include => extensions
include => outgoing