On 23/10/2014 3:55 AM, Tim Nelson wrote:
----- Original Message -----
Greetings-
Working with the T.38 gateway functionality that is sparsely
documented [1], I'm attempting to get the following functional:
Asterisk calling system -> Asterisk system in T.38 Gateway Mode (box
in question) -> SIP Provider
The problem is:
-The provider is not initiating a reinvite to T.38, even though it is
100% supported
-Asterisk is not detecting the CNG tones from the far side of the
call and initiating a T.38 session on that call leg (with the SIP
provider), but *DOES* attempt to initiate a T.38 session with the
calling Asterisk system (which rejects with SIP/488 as expected)
So, how does one force a reinvite to T.38 on the outbound call leg in
this scenario? I did find the same problem from another user on the
list in the archives, but didn't find a solution contained within
the responses [2].
Thank you,
--Tim
[1] https://wiki.asterisk.org/wiki/display/AST/T.38+Fax+Gateway
[2]
http://lists.digium.com/pipermail/asterisk-users/2012-July/273535.html
*bump*
Any thoughts? I'm quite familiar with the T.38 functionality within Callweaver, and a
function is provided there to do exactly what I need ( SipT38SwitchOver() ). However,
given Callweaver is ancient at this point, and better T.38 features such as
"gateway" do not function, I am pressed to use Asterisk (11.13.1) with SpanDSP
(0.0.5, latest from Github since spandsp.org is down) for this job. :)
No thoughts on your problem, I do think you will need a newer version of
spandsp through - the site seems to be up now.
--
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