[Asterisk-Users] SIP device rings once on busy before giving busy tone with dialplan

[Linus Surguy]

> Linus,  I assuming that for incoming service something like .....
> 
> exten => <incomingnumber>,1,AbsoluteTimeout(3600)
> exten => <incomingnumber>,2,Dial(SIP/sipdevice,120)  (maybe with ,r)
> exten => <incomingnumber>,3,Congestion
> exten => <incomingnumber>,103,Busy
> 
> [where <incomingnumber> is whatever the incoming service number is
> presented as.]
> 
> would probably not cause someones telco to charge a customer if the call
> wasn't picked up after 120 seconds or was busy immediately as the only
> possible 'answer' would be generated by the dialled device picking up?

Exactly!

Linus