[Freeswitch-users] SIP Re-invite

Anthony Minessale anthony.minessale at gmail.com
Wed Dec 16 15:42:48 PST 2009

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> 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
> 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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Anthony Minessale II

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