[Freeswitch-users] SIP Re-invite

[Michael Giagnocavo]

FWIW, we’ve seen the same thing intermittently, haven’t had time/been able to get a solid repro to capture debug information.

Call ID and tags are all matching. After the re-invite fails and the remote end sends a BYE, FS does indeed respond to the re-invite.

-Michael

From: freeswitch-users-bounces at lists.freeswitch.org [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of DJB
Sent: Wednesday, December 16, 2009 6:00 PM
To: freeswitch-users at lists.freeswitch.org
Subject: Re: [Freeswitch-users] SIP Re-invite

Call-ID are the same for 1st, 2nd, and 3rd INVITE.  The only thing I saw difference was the Via Branch value.  Would that be a problem, since 1st and 2nd INVITE was also different and was okay.

Is there any other values that I should look at?

Thank you.

________________________________
From: Anthony Minessale <anthony.minessale at gmail.com>
To: freeswitch-users at lists.freeswitch.org
Sent: Wed, December 16, 2009 3:42:48 PM
Subject: Re: [Freeswitch-users] SIP Re-invite

that means the invite is not matching the call dialog
compare the via tags and call-id etc

On Wed, Dec 16, 2009 at 5:29 PM, DJB <djbinter at yahoo.com<mailto:djbinter at yahoo.com>> wrote:
We have a customer that we are sending calls to off the FS and here is the issue:

Call is initially setup fine and they send a first re-invite with media 0.0.0.0 to place the caller on hold. FS sends a 200 ok to this first re-invite fine

They then send a second re-invite with their media IP to cut through media and the FS sends a 200 OK to this fine. At this point the call is fine

30 minutes later they send a third re-invite because according to them it is strictly for the purpose of “keep alive” per RFC 4028. This third re-invite has the exact same media IP and UDP pot information as the second re-invite does. The problem is FS does not respond to this third re-invite AT ALL. It doesn’t send a 100 trying a 200 OK nothing so this causes the call to be dropped as the other end does not recieve a response from FS.

One more thing, we did not see the third re-invite in sofia siptrace, but we do see it in ethereal, which is kind of odds.

We are running FreeSWITCH Version 1.0.trunk (15979) in bypass media mode.

Thank you very much.


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