[SR-Users] question on call cancel

[Kelvin Chua]

thanks for the insights alex :)

Kelvin Chua

On Wed, Dec 14, 2016 at 6:06 PM, Alex Balashov <abalashov at evaristesys.com>
wrote:

> Unfortunately, calls can be set up between two fixed endpoints only. If
> those endpoints change, not much you can do.
>
> I think this is a problem that some of the standards around IPv6 mobile
> roaming are meant to solve.
>
> On Wed, Dec 14, 2016 at 05:51:03PM +0800, Kelvin Chua wrote:
>
> > I have a peculiar scenario, maybe you guys have an easy solution:
> >
> > 1. a call comes in through an SBC (which is also kamailio)
> > 2. SBC passes call to core kamailio server
> > 3. call reaches 180 ringing state
> > 4. client suddenly changes from wifi to 4G (using 4G IP, VIA headers are
> > all updated)
> > 5. client sends cancel and receives cancelling msg from SBC
> > 6. SBC sends cancel to kamailio core
> > 7. kamailio core sends back Request Terminated after termination
> > the issue is, this message was sent to the wifi IP not the 4G
> >
> > when checking the network dumps, looks like this was because the INVITE
> was
> > received
> > on kamailio core from the old wifi IP. Is there maybe a way to update the
> > transaction perhaps?
> >
> >
> > Kelvin Chua
>
> > _______________________________________________
> > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> > sr-users at lists.sip-router.org
> > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>
>
> --
> Alex Balashov | Principal | Evariste Systems LLC
>
> Tel: +1-706-510-6800 (direct) / +1-800-250-5920 (toll-free)
> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>
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> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
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