[OpenSIPS-Users] Opensips MS Teams lost BYE

[Johan De Clercq]

i dont see how you can  handle moh and attended transfer with opensips only.

On Mon, Jul 27, 2020, 11:31 Chris Johnson <Chris.Johnson at froneri.com> wrote:

> We were only able to remove one of the fix_nated_contact lines before it
> broke more than it did fix.
>
>
>
> We’re currently seeking support from Opensips directly to get it all
> working correctly.
>
>
>
> *From:* Mark Miranda <mark at markmiranda.com>
> *Sent:* 24 July 2020 21:21
> *To:* john.quick at smartvox.co.uk; OpenSIPS users mailling list <
> users at lists.opensips.org>
> *Cc:* Chris Johnson <Chris.Johnson at froneri.com>
> *Subject:* Re: [OpenSIPS-Users] Opensips MS Teams lost BYE
>
>
>
> CAUTION: This email originated from outside of the organisation. Do not
> click links or open attachments unless you recognise the sender and know
> the content is safe.
>
> I have basically the same problem where the BYE packet does not seem to be
> routing properly, however I am not using any of the nat functions.
>
> > On Jul 6, 2020, at 3:46 AM, John Quick <john.quick at smartvox.co.uk>
> wrote:
> >
> > Chris,
> >
> > You must not call fix_nated_contact() for any SIP requests or SIP
> responses
> > coming from MS Teams.
> > If you do, it will cause exactly the problems you describe for
> loose-routed
> > sequential requests such as BYE.
> >
> > Just to explain: fix_nated_contact() should only be used when the
> messages
> > come via a NAT router. It must not be used for messages coming from a
> Proxy
> > (assuming the Proxy adds a Record-Route header, as happens with Teams),
> even
> > though both cases may appear to need fixing when you use nat_uac_test().
> >
> > John Quick
> > Smartvox Limited
> > Web: www.smartvox.co.uk
> >
> >> I've managed to get the PBX to send the BYE to the SBC and it is now
> > forwarding on to MS (although MS are not sending a reply but we have
> opened
> > a case for this).
> >
> >> We are struggling to get the BYE packet to go back to MS Teams when the
> > call is initiated by Teams.
> >
> >
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> > Users at lists.opensips.org
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