[Freeswitch-users] How to refuse T.38 requests

[Ali Pey]

Your carrier is sending the Update message and not the Invite, so you
should ask them. FS, supports Update and that's why it's in the Allow
message. I'm not sure if and how you can remove an allow parameter and I
don't think that would make a difference.

Ask your carrier to send a Re-Invite if you prefer that. Also, if you are
behind a proxy servers such as OpenSIPS, you can do certain message
manipulation to force certain behavior.

Regards,
Ali Pey


On Mon, Jan 20, 2014 at 12:17 PM, geo cherchetout <
geo.cherchetout at laposte.net> wrote:

> Le 30/12/2013 19:03, *Ali Pey* wrote:
>
> > 200 OK is a proper respond in this scenario as FS did receive the Update
> for
> > an existing SIP session. Codec negotiation is a different story and is
> > negotiated through SDP (Offer/Answer).
>
> But why does FS receive such an UPDATE request unstead of an INVITE one ?
> Is this because the "UPDATE" string is included in the "allow:" field it
> sends in its own INVITE requests ?
> Is it possible to have FS not including this string ? And how could I have
> this string not included ?
>
> > If FS responds with a 4XX response code, the call would very likely be
> > dropped which probably be a less desired outcome.
>
> With other UACs I use, responding 488 to an INVITE request from OVH (my
> VoIP
> provider) does not drop the call. OVH sends quickly a new INVITE with
> compatible SDP and the call goes on. So I should prefer to receive an
> INVITE... and see what happens.
>
>
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