[Asterisk-Users] T.38 decoding

[Brian West]

You do realize that t.38 is the act of taking the t.30 stream and  
stuffing into UDPTL packet and sending it over a network with a  
little ASN.1 header added and some reliable delivery kinda like how  
IAX has reliable delivery of UDP packets used for signaling.  This is  
a very basic description of how its done.... Go check how t38modem  
does it.. it emulates a modem and just intercepts the t.30 stream and  
transports it.

/b

On Aug 13, 2005, at 11:55 AM, Roger Schreiter wrote:

> Hi,
>
> I searched a while about T.38 decoding, and learned about the
> bounty for T.38 support for asterisk and some softdecoders and
> some hardware de- and encoding T.38.
>
> Now I wonder, if there is already any (almost) ready to use solution
> for decoding of T.38 faxes?
>
> My szenario would be:
> - Receiving a SIP call (containing the T.38 fax) by my provider with
>   my asterisk box.
> - asterisk would forward that SIP call to the converter.
> - The converter would send the SIP call back to my asterisk box, but
>   now with the fax deocoded to an ordenary anolog fax.
>
> Has anyone experience with a working solution, maybe a foreign
> service provider doing it, or a working (asterisk independent)
> software?
>
> Thanks for any hints!
>
>
> Roger.
>
>
> P.S.
> Currently I'm trying to understand, what ionidea's T.38 software is
> already able to do, but I'm still confused.
>
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