That 100 trying is handled deep in the sip stack. The author of sofia said it would be a big job to bring that up to the even callback. Someone may be able to persuade him to allow you to pass a global timeout waiting for 100 or something but no solution exists atm On Tue, Apr 21, 2009 at 3:32 AM, John Dalgliesh <johnd@defyne.org> wrote:
Hi,
I am trying to use FS to make outgoing SIP calls. I have a number of gateways that can make the call. However, if one of them is down or has some other problem then I would like to detect that quickly.
I intended to use the provisional '100 Trying' message for this... if it hasn't been received in a couple of seconds then go on and try the next gateway.
But I can't find a flag/event/state which corresponds to receipt of this message. Can anyone tell me where I should be looking? I put a debug print in sofia_event_callback for every event but there doesn't seem to be one fired for this condition.
Thanks in advance.
{P^/ John
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