Hi Tomislav,

It sounds to me that you have t.38 enabled on your Grandstream Handytone 386. You should disable this on the Handytone. I have a handytone 286 which has an option to disable t.38 and use fax passthrough. This should get rid of your t.38 messages on the cli.

Craig

----- Original Message ----- From: "Tomislav Parčina" <[EMAIL PROTECTED]> To: "Asterisk Users Mailing List - Non-Commercial Discussion" <[email protected]>
Sent: Wednesday, November 15, 2006 8:40 PM
Subject: [asterisk-users] T38 problem


I have problem with fax machine Panasonic DX600. It's connected to Grandstream Handy Tone 386 which is connected to Asterisk. Asterisk is connected to my SIP provider.

To some numbers I can't send FAX, and I get following error on CLI.
WARNING[2237] chan_sip.c: Unknown SDP media type in offer: image 31358 udptl t38

I believe that Panasonic DX600 machine supports T38. And when I have another T38 fax machine on other end they try to send FAX using T38 protocol. And than I believe I get above error and sending FAX fails.

Is there any way to solve this? I hear that there is T38 support in Asterisk 1.4, but I can't wait for version 1.4. In manual for Panasonic DX600 I didn't find any instructions how to turn T38 off.

Please suggest something.



--
Tomislav Parčina
Lama Computers Split
Stinice 12, 21000 Split
Tel.: +385(21)270248
Mob.: +385(91)1212148
SIP: [EMAIL PROTECTED]
e-mail: tparcina#lama.hr
http://www.lama.hr
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