-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On Sat, 1 Apr 2006, Steve Underwood wrote:
> Max CtRiX Cetra wrote:
>> I am trying to make T38 termination work under openpbx.
>> I have used egnarf T38 trunk and it compiles cleanly with the latest
>> spandsp snapshot (commiting it to mainline could be useful).
<snipp>
> Here's a hint: "it doesn't work" is a completely useless report. :-)
> What does happen? What do the logs show? Does it negotiate T.38 at all?
Firstly,
that branch is under development.. Or, it would be if it wasn't for a
lot of other things that I need to do and the fact that I haven't had
the time to read the T.38 specs yet =)
I've been testing with RxFax and trying to receive a fax using UDPTL
The problems so far are:
* chan_sip doesn't seem to detect the fax tones. I don't really see
why, but it seems the goertzel detector doesn't detect it. WHat I
found is that this check
if (!hit && (fax_energy >= FAX_THRESHOLD) &&
(fax_energy >= DTMF_TO_TOTAL_ENERGY*s->energy)
the second line never gets to be true. If I remove it it seems to
detect the faxtones. But I don't understand what it does so I don't
really want to remove it. Steve, if you could look at that it would
be great!
* A really annoying bug in chan_sip/rtp/udptl/idontknowyet causes
openpbx to ignore incoming frames until it has sent the first frame
itself. So RxFax doesn't receive audio / udptl at all until it has
sent the first frame itself. I needed to add a PlayTones() before
the call to RxFax to hear the initial fax-tones in my test-phone and
via the modem.
If anyone has any experience with T.38 and feels like looking at it,
please do so! I probably won't have the time for a while =/
/B
- --
* GPG-Key: http://evil.gnarf.org/mrbk.pgp
A: Because we read from top to bottom, left to right.
Q: Why should i start my reply below the quoted text?
- -- http://www.i-hate-computers.demon.co.uk/
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.1 (GNU/Linux)
iD8DBQFEL4ipckvkFeO3ANARAlF0AJ9YlE/bek0314ToCv0AIfdVTH5YQgCeJeTi
S67FGX9L0wcswyedz6rFWtM=
=qxXJ
-----END PGP SIGNATURE-----
_______________________________________________
Openpbx-dev mailing list
[email protected]
http://lists.openpbx.org/mailman/listinfo/openpbx-dev
