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

Bastian Schern ml02 at in-bln.de
Sat Nov 4 05:00:32 CET 2006


Ovidiu Sas schrieb:
> 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 :)

This sounds good. Do you know if the SIPURA/Linksys ATAs are working
fine with nathelper/rtpproxy and UDPTL?

Regards
	Bastian
[...]

> 
> 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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