[Freeswitch-users] call timeout and failover

[Robert Hadley]

Hi,
Also try with setting the ignore_early_media=true or =ring_ready channel variable or in the dial string.

http://wiki.freeswitch.org/wiki/Channel_Variables#ignore_early_media

http://wiki.freeswitch.org/wiki/Early_Media#Ignoring_Early_Media

Regards,
Robert


From: François [mailto:fdelawarde at wirelessmundi.com]
Sent: Friday, November 08, 2013 12:54 PM
To: FreeSWITCH Users Help
Subject: Re: [Freeswitch-users] call timeout and failover

Did you try with the "leg_progress_timeout" variable?

François.

On Fri, 2013-11-08 at 15:06 -0500, fs wrote:
I wonder if anyone has any thoughts on this.   Using continue on fail works fine for failover but to the best of my knowledge it only works if you do not get an answer or session progress.  The trouble with this is if you are calling cell phones etc, it can take up to 12 seconds to get the messages.  I would like to explore if failover could be instituted by not receiving a Trying message.  This is usually returned immediately and does stop the freeswitch from sending more invites.  That way, a 4 second timer could be used and switch to an alternate route early and still give reasonable completion times.

The tcap trace below shows a typical call to a cell in our area,  the trying is almost immediate while the cell in this case took 5.5 seconds.  I have seen this quite frequently take as long as 12 seconds.

Also, when calling internationally, longer times are quite common.

Perhaps this is already implemented but I have not been able to find it.

449.776291  SIP/SDP Request: INVITE sip:1613802xxxx at xxx.xxx.xxx.xx, with session description
449.782429  SIP Status: 100 Trying
456.211562  SIP/SDP Status: 183 Session Progress, with session description

Darcy Primrose
voice2net



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