Hi Bartek, I posted the exact same problem last week - I found that if I
connected two Asterisk systems together via a PRI crossover cable and talk
txfax to rxfax then you get a T4 state timeout. I tried connecting ports
one and two together on a TE410p and also connecting a TE410p to a TE110p,
and a TE110p to a TE110p on different machines. I also found this when
looping back via the PSTN. I read up a bit on what T4 actually is, and it
seems to be a pretty high level state, where the faxes are transferring or
about to transfer the tiff image data between themselves. The faxes will
eventually hangup on each other - if you do a zap destroy channel to force
hangup then you will sometimes get a segfault and asterisk will crash.
I haven't found a solution for it, but it's not a big problem for me as I
was only going txfax to rxfax as part of testing something else and I am
using a hardfax attached to a SIP ata instead that works just fine against
both rxfax and txfax.
Craig
----- Original Message -----
From: "Bartek Kania" <[EMAIL PROTECTED]>
To: "Asterisk Users Mailing List - Non-Commercial Discussion"
<asterisk-users@lists.digium.com>
Sent: Wednesday, August 17, 2005 9:57 PM
Subject: Re: [Asterisk-Users] TxFax -> RxFax on same machine hangs
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On Wed, 17 Aug 2005, Steve Underwood wrote:
Bartek Kania wrote:
If the call really dialed out through a PSTN port and back in it
should work. It is was a pure internal connection between 2
processes it will not. The timing for these programs comes from the
received data. No data, no work.
I can confirm that this problem appears on a call through the PSTN.
My setup is:
TxFax -> Asterisk -> E1 -> Asterisk (same box) ->RxFax
Asterisk version 1.0.9 and spandsp version 0.0.2pre18 on debian woody
(3.0).
I sent you an email about it with some debug information a week or so
ago.
If you need it again, or need some other info I'll be happy to provide
it.
Did you put txfax in caller mode?
Yes I did.
This is a snippet from 'show channel' for the two channels:
Name: Zap/3-1
Type: Zap
...
Frames in: 5249
Frames out: 265
Time to Hangup: 0
Elapsed Time: 0h1m45s
...
Application: RxFAX
Data: /tmp/1123753288.12.tif
Stack: 1
Blocking in: ast_waitfor_nandfds
and
Name: Zap/28-1
Type: Zap
...
Frames in: 3123
Frames out: 430
Time to Hangup: 0
Elapsed Time: 0h1m3s
...
Application: TxFAX
Data:
/usr/local/asterisk/var/spool/asterisk/faxspool//ff-psbj1x.tif|caller|debug
Stack: 0
Blocking in: ast_waitfor_nandfds
The console seems to indicate that the faxes start to communicate using
the slow modems, and then hang after switching to a fast modem.
Log is attached.
/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)
iD8DBQFDA0I5ckvkFeO3ANARAjLJAJ0eXELd2WjzGOy59ptkFEE3kiUJcQCgxF9P
3WgYpTG5b1BfA3yOVk3w9wc=
=lNab
-----END PGP SIGNATURE-----
--------------------------------------------------------------------------------
_______________________________________________
Asterisk-Users mailing list
Asterisk-Users@lists.digium.com
http://lists.digium.com/mailman/listinfo/asterisk-users
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
_______________________________________________
Asterisk-Users mailing list
Asterisk-Users@lists.digium.com
http://lists.digium.com/mailman/listinfo/asterisk-users
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
