[Freeswitch-users] continue_on_fail for condition only where 100 not received?

[Michael Collins]

So *relying* on a 100 Trying is dangerous, but keeping an eye out for it is
okay. To the OP (Neil) I'd ask: what is the failure condition when a 100
Trying does not come back? Is that a form of "gateway down"? Is it possibly
to use SIP OPTIONS to test this instead of relying upon a 100?

-MC

On Thu, Apr 21, 2011 at 8:55 AM, Steven Ayre <steveayre at gmail.com> wrote:

> Yes, but it can be skipped - for instance if you're autoanswering you could
> skip the 100 and jump straight to the 200. Or similarly if you're generating
> ringback jump straight to the 183. There's no reason that 100 is needed
> first.
>
> -Steve
>
>
>
> On 21 April 2011 15:31, Kristian Kielhofner <kris at kriskinc.com> wrote:
>
>> When using UDP it's typically a good idea to fire some kind of
>> provisional response ASAP to prevent the SIP retransmission timers
>> from freaking out and repeatedly resending the initial INVITE.  That's
>> where 100 Trying comes in.
>>
>> On Thu, Apr 21, 2011 at 10:13 AM, Brian West <brian at freeswitch.org>
>> wrote:
>> > That seems like  rather weird request since the 100 trying isn't
>> required.
>> >
>> > /b
>>
>> --
>> Kristian Kielhofner
>>
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