[Freeswitch-users] Detect T.38 reinvite and transcode?

[Michael Collins]

Thanks for paying the wiki tax! Now you just need to sign up for cluecon...
;)

-MC

On Thu, Apr 14, 2011 at 8:33 PM, Bill W. <freeswitch at aastral.net> wrote:

> Thanks so much Brian!
>
> Seriously, the whole FreeSWITCH team deserves a big round of applause.
>  It's such a pleasure to get the answer "Oh yeah, it already does that".
>
> I documented this in the Wiki too.
>
> For posterity:
> <extension name="t38_reinvite">
>  <condition>
>     <action application="set" data="fax_enable_t38=true"/>
>    <action application="set" data="fax_enable_t38_request=true"/>
>    <action application="set" data="t38_gateway_format=udptl"/>
>    <action application="set" data="execute_on_answer=t38_gateway self"/>
>    <action application="bridge" data="sofia/external/1234 at host"/>
>  </condition>
> </extension>
>
>
> Aastral Communications
> bweidman at aastral.net
> Tel: 786-522-0440
> Tel: 888-404-3280
> Cell: 954-540-4931
>
> On 4/14/11 7:04 PM, Brian West wrote:
> > that is exactly what t38_gateway does.
> >
> > /b
> >
> > On Apr 14, 2011, at 5:52 PM, Bill W. wrote:
> >
> >> Hi there,
> >>
> >> Is there a way to have FreeSWITCH detect a T.38 reinvite, accept it, and
> >> transcode that into ULAW before sending it on to the B-leg?
> >>
> >> The fax is neither originated nor terminated on the FS gateway.  FS
> >> would simply transcode T.38 to ULAW.
> >>
> >> I looked at the mod_spandsp documentation and it wasn't readily
> apparent.
> >>
> >> To be clear
> >> host_a -> FS -> host_b
> >>
> >> host_a sends an INVITE
> >> host_b responds with 100, 180, 200
> >> then host_a sends another INVITE with SDP for T.38
> >>
> >> Can FS ack that RE-INVITE and transcode, so the legs look like this?
> >> host_a -> T.38 -> FS -> ULAW -> host_b
> >>
> >>
> >> Thanks!
> >> Bill
> >>
> >> _______________________________________________
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> >
> >
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