Re: [asterisk-users] T.38 troubles

2012-03-28 Thread Jean-Denis Girard 
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Hi Steve,

Le 26/03/2012 14:50, Steve Underwood a écrit :
 Spandsp has some workarounds for bugs in Mediatrix boxes. They usually
 work OK.

I just made a couple of tests with spandsp snapshot 20120328: I now get
The call dropped prematurely. Network capture is attached, hope that
helps.


Thanks,
- -- 
Jean-Denis Girard

SysNux  Systèmes  Linux  en Polynésie française
http://www.sysnux.pf/   Tél: +689 50 10 40 / GSM: +689 79 75 27
-BEGIN PGP SIGNATURE-

iEYEARECAAYFAk9zrHoACgkQuu7Rv+oOo/gFeACeN+xlKqUOsduA8132kiGP7Lbc
gpIAn2n/b6DoN/80G0kQv/Q8MkraSJRW
=NVE/
-END PGP SIGNATURE-


fax-ast10-2.pcap.bz2
Description: BZip2 compressed data
--
_
-- Bandwidth and Colocation Provided by http://www.api-digital.com --
New to Asterisk? Join us for a live introductory webinar every Thurs:
   http://www.asterisk.org/hello

asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
   http://lists.digium.com/mailman/listinfo/asterisk-users

[asterisk-users] T.38 troubles

2012-03-26 Thread Jean-Denis Girard 
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

- -BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Hi list,

I'm having difficulties when receiving faxes from the PSTN with this
relatively simple installation:
   PSTN --PRI-- GW --T.38-- Asterisk

The gateway is a Mediatrix 3301 (firmware Dgw 2.0.14.251). It's
configured to transmit faxes as T.38. I may have missed something in its
configuration, but it does switch to T.38 when a fax is detected. On the
Asterisk side, I'm using 10.2.1 with spandsp-0.0.6-pre20 and ReceiveFax
from res_fax_spandsp. ${FAXSTATUS} returns FAILED and ${FAXERROR}
Disconnected after permitted retries.

I did a network capture, attached to this mail: from my understanding,
T.38 is accepted by Asterisk, then there seems to be some UDPTL traffic,
which I don't understand...

Why does it fail, and what is wrong? I'd appreciate if someone could
send me advice / suggestions.


Thanks,
- - --
Jean-Denis Girard

SysNux  Systèmes  Linux  en Polynésie française
http://www.sysnux.pf/   Tél: +689 50 10 40 / GSM: +689 79 75 27
- -BEGIN PGP SIGNATURE-

iEYEARECAAYFAk9xAc0ACgkQuu7Rv+oOo/iE+gCgqJXSlF/db4VCV0wvbL+X5yBv
bLMAoKl6DZcgmNEMeJcqPz+3Gg3SpoFh
=0DfY
- -END PGP SIGNATURE-

-BEGIN PGP SIGNATURE-

iEYEARECAAYFAk9xA4cACgkQuu7Rv+oOo/geRwCfTPHDNUa6d0HrmypPrWyPz8i/
A7kAnjz96glRD0hqDlO2wzvxV1wVM0uI
=lWvs
-END PGP SIGNATURE-


fax-ast10.pcap.bz2
Description: BZip2 compressed data
--
_
-- Bandwidth and Colocation Provided by http://www.api-digital.com --
New to Asterisk? Join us for a live introductory webinar every Thurs:
   http://www.asterisk.org/hello

asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
   http://lists.digium.com/mailman/listinfo/asterisk-users

Re: [asterisk-users] T.38 troubles

2012-03-26 Thread Steve Underwood 

Hi Jean-Denis,

Your log shows the Mediatrix GW has problems. It sends a DCS signal to 
the Asterisk box, but doesn't following it with TCF as it should. The 
asterisk box times out waiting for TCF and tries to take recovery action 
which fails.


Spandsp has some workarounds for bugs in Mediatrix boxes. They usually 
work OK.


Regards,
Steve


On 03/27/2012 08:02 AM, Jean-Denis Girard wrote:

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

- -BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Hi list,

I'm having difficulties when receiving faxes from the PSTN with this
relatively simple installation:
PSTN--PRI--  GW--T.38--  Asterisk

The gateway is a Mediatrix 3301 (firmware Dgw 2.0.14.251). It's
configured to transmit faxes as T.38. I may have missed something in its
configuration, but it does switch to T.38 when a fax is detected. On the
Asterisk side, I'm using 10.2.1 with spandsp-0.0.6-pre20 and ReceiveFax
from res_fax_spandsp. ${FAXSTATUS} returns FAILED and ${FAXERROR}
Disconnected after permitted retries.

I did a network capture, attached to this mail: from my understanding,
T.38 is accepted by Asterisk, then there seems to be some UDPTL traffic,
which I don't understand...

Why does it fail, and what is wrong? I'd appreciate if someone could
send me advice / suggestions.


Thanks,
- - --
Jean-Denis Girard

SysNux  Systèmes  Linux  en Polynésie française
http://www.sysnux.pf/   Tél: +689 50 10 40 / GSM: +689 79 75 27
- -BEGIN PGP SIGNATURE-

iEYEARECAAYFAk9xAc0ACgkQuu7Rv+oOo/iE+gCgqJXSlF/db4VCV0wvbL+X5yBv
bLMAoKl6DZcgmNEMeJcqPz+3Gg3SpoFh
=0DfY
- -END PGP SIGNATURE-

-BEGIN PGP SIGNATURE-

iEYEARECAAYFAk9xA4cACgkQuu7Rv+oOo/geRwCfTPHDNUa6d0HrmypPrWyPz8i/
A7kAnjz96glRD0hqDlO2wzvxV1wVM0uI
=lWvs
-END PGP SIGNATURE-


--
_
-- Bandwidth and Colocation Provided by http://www.api-digital.com --
New to Asterisk? Join us for a live introductory webinar every Thurs:
http://www.asterisk.org/hello

asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users



--
_
-- Bandwidth and Colocation Provided by http://www.api-digital.com --
New to Asterisk? Join us for a live introductory webinar every Thurs:
  http://www.asterisk.org/hello

asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
  http://lists.digium.com/mailman/listinfo/asterisk-users

Re: [asterisk-users] T.38 troubles

2012-03-26 Thread Jean-Denis Girard 
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Hi Steve,

Le 26/03/2012 14:50, Steve Underwood a écrit :
 Your log shows the Mediatrix GW has problems. It sends a DCS signal to
 the Asterisk box, but doesn't following it with TCF as it should. The
 asterisk box times out waiting for TCF and tries to take recovery action
 which fails.

Thanks for your analysis. Could it be a configuration problem on the
Mediatrix?

 Spandsp has some workarounds for bugs in Mediatrix boxes. They usually
 work OK.

What would you suggest then, is there anything to do to enable the
workarounds? spandsp-0.0.6pre20 is the latest available, or should I try
spandsp-20120324? As far as I know, there is no firmware update for the
Mediatrix...


Thanks,
- -- 
Jean-Denis Girard

SysNux  Systèmes  Linux  en Polynésie française
http://www.sysnux.pf/   Tél: +689 50 10 40 / GSM: +689 79 75 27
-BEGIN PGP SIGNATURE-

iEYEARECAAYFAk9xFUUACgkQuu7Rv+oOo/jp+QCeMH14GwjoNTWjF7JpTVntv8nr
wbYAn1dik/g+uurccqat/KcQwS8cxxZw
=MQNr
-END PGP SIGNATURE-

--
_
-- Bandwidth and Colocation Provided by http://www.api-digital.com --
New to Asterisk? Join us for a live introductory webinar every Thurs:
   http://www.asterisk.org/hello

asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
   http://lists.digium.com/mailman/listinfo/asterisk-users