----- Original Message -----
> 
> 
> On 22/10/2014 11:23 AM, Tim Nelson wrote:
> > Greetings-
> >
> > Working with the T.38 gateway functionality that is sparsely
> > documented
> > [1], I'm attempting to get the following functional:
> >
> 
> What type of endpoint are you using which is originating the call and
> is
> it T.38 capable?
> 

The originating endpoint is an IAXmodem controlled by Hylafax. Actual call flow 
is IAXmodem --G.711u via localhost--> Asterisk (old version with no T.38 
support) --G.711u--> Asterisk 11.x --G.711u/T.38--> ITSP

The problem lies on the Asterisk 11.x system not being able to reinvite to T.38 
on the call leg with the ITSP, and given the ITSP does not do this either, the 
call is stuck in G.711u with varying performance. :/

--Tim

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