This last week I have been playing with Asterisk to eventually replace our current phone line. Today I brought two Cisco business IP phones today for a test (production) install of Asterisk tomorrow and to give a demonstration.
But i’m not sure on the best way of setting up my extentions.conf. Basicly when the Asterisk box gets a call from the SIP trunk it Dial()'s the main SIP phone (100) it gets a call for 15 seconds, if busy or no answer it Dail()'s SIP phone 101,102,103 at the same time. If no answer then go to a main voicemail. But each of my SIP phones in the config have their own voicemail, so when asterisk phone calls each of the other phones because the main phone is busy will it also run the voicemail() on each of the SIP clients? I’m not sure if that makes sense?
Secondly… My SIP provider, sipgate, allows 10 calls at once. How do I get it to send say a second call on the number to a different phone if the main phone is busy?
Thirdly… On the Cisco IP phones how do they interact with Asterisk to transfer a call to another extension. Does the phone just dial the extension on behalves of the client or what? How do I set that up?
I know that’s loads of questions, but I have no system to test these things tonight and I just want to be prepared for tomorrow.
Thanks, David Maitland.