<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">I think the original question was: is there a way to failover if the remote gateway does not send back anything (no 1XX, no 2XX), with a configurable INVITE timeout (5 seconds would probably be better than 60).<div><br></div><div>To answer to Mike:</div><div>I think we should consider the possibility that the remote gateway answers correctly to SIP OPTIONS, but only fails to respond to INVITEs. I saw weirder things :)</div><div><br><div><div>
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<br><div><div>Le 21/04/2011 à 20:06, Kristian Kielhofner a écrit :</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Of course it can be skipped but nothing, and I mean nothing, can fire<br>faster than a 100. To my knowledge Sofia fires a 100 before the<br>dialplan even begins hunting, as an example (very good behavior). In<br>cases where the far end has a low T1 timer you should fire a 100<br>before you even take the time to execute dialplan, etc. Especially in<br>cases where you may encounter high call volume and varying call<br>setup/hunting times.<br><br>SER config 101 is to fire a 100 before you do any DB logic, etc as it<br>buys you time beyond the first T1 timer (500ms or less) before the far<br>end (that you have no control over) retries. It's best practice and<br>HIGHLY, HIGHLY recommended.<br><br>This is such a strange case I'm not sure what the best recommendation<br>might be as the original question doesn't contain enough specific<br>detail.<br><br>On Thu, Apr 21, 2011 at 11:55 AM, Steven Ayre <<a href="mailto:steveayre@gmail.com">steveayre@gmail.com</a>> wrote:<br><blockquote type="cite">Yes, but it can be skipped - for instance if you're autoanswering you could<br></blockquote><blockquote type="cite">skip the 100 and jump straight to the 200. Or similarly if you're generating<br></blockquote><blockquote type="cite">ringback jump straight to the 183. There's no reason that 100 is needed<br></blockquote><blockquote type="cite">first.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">-Steve<br></blockquote><blockquote type="cite"><br></blockquote><br>-- <br>Kristian Kielhofner<br><br>_______________________________________________<br>FreeSWITCH-users mailing list<br><a href="mailto:FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</a><br>http://lists.freeswitch.org/mailman/listinfo/freeswitch-users<br>UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users<br>http://www.freeswitch.org<br></div></blockquote></div><br></div></div></body></html>