[Users] Re: State of T.38 and MediaProxy/RTPProxy

Ovidiu Sas sip.nslu at gmail.com
Sat Nov 4 00:42:42 CET 2006


T.38 over udptl is well supported by nathelper/rtpproxy.
RFC 4612 is pretty fresh (August 2006) ... so I wouldn't expect to see
many implementations at this point in time.  But I might be wrong :)


Regards,
Ovidiu Sas

On 11/3/06, Bastian Schern <ml02 at in-bln.de> wrote:
> Doug Meredith schrieb:
> > Bogdan-Andrei Iancu <bogdan at voice-system.ro>
> > wrote:
> >
> >> should be no issue with T38 as it is encapsulated in RTP and both media
> >> relays operates at RTP level.
> >
> > My knowledge of T38 is pretty limited, but my understanding is that
> > T38 allows for RTP media as well as another method of transporting
> > media.  If your devices are not using RTP then MediaProxy probably
> > won't work.
> >
> > Feel free to beat on me if I have this all wrong.
> >
> > Doug
>
> I don't beat you, you're right in this point. ;-)
>
> But the Problem is that the most T.38 Devices are using UDPTL for media.
>
> Do you know some devices which are using RTP for T.38?
>
> Is the rtpproxy/nathelper able to handle UDPTL?
>
>
> Regards
>         Bastian
>
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