[SR-Users] Kamailio propagates 180 and 200 OK OUT OF ORDER

[David Villasmil]

Agreed. Just suggesting an extreme.

On Thu, 9 Apr 2020 at 14:51, Alex Balashov <abalashov at evaristesys.com>
wrote:

> On Thu, Apr 09, 2020 at 02:26:45PM +0100, David Villasmil wrote:
>
> > How about just not forwarding the 180 if it’s coming right after the
> > 200ok?  I know it’s a hack, but a 180 is a provisional response
> > indicating the ring status, not the actual audio for the ring... so if
> > a 200 is received, the call is already established, no need to forward
> > the 180.
>
> There is a general principle, particularly in PSTN interworking, that
> signalling should be reliably conserved end-to-end. I think dropping
> messages is the most cavalier option available, perhaps worth
> considering only if every other logical possibility has been exhausted
> first.
>
> --
> Alex Balashov | Principal | Evariste Systems LLC
>
> Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>
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-- 
Regards,

David Villasmil
email: david.villasmil.work at gmail.com
phone: +34669448337
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