Summary:ASTERISK-04928: Not working when dialing from ISDN BRI modem
Reporter:Tomica Crnek (tcrnek)Labels:
Date Opened:2005-08-29 14:07:51Date Closed:2011-06-07 14:10:14
Versions:Frequency of
Description:If you dial into DISA application from ISDN line connected to Asterisk through ISDN card DISA doesn't recognize DTMF. It reports the following and does nothing:

Aug 29 20:56:23 WARNING[11810]: channel.c:2009 set_format: Unable to find a codec translation path from slin to unknown

If I dial from SIP or any other line DISA works fine. It seams that modem translation definition is missing.
Comments:By: Olle Johansson (oej) 2005-08-29 15:05:17

What channel do you use for the BRI ISDN? It can't be anything included in asterisk.org standard distribution.

By: Tomica Crnek (tcrnek) 2005-08-29 15:37:08

I use ISDN for Linux channel Modem[i4l]. It worked fine before I updated my Asterisk to fresh CVS-HEAD few weeks ago.

By: Olle Johansson (oej) 2005-08-29 15:46:43

Sorry, was wrong. Did not think anyone used chan_modem for I4L.

By: Tomica Crnek (tcrnek) 2005-08-29 15:50:18

I am using it like this because I can't get it work with capi.

By: Brian West (bkw918) 2005-08-30 20:05:45

int option_transcode_slin = 1;

transcode_via_sln = no in asterisk.conf... it defaults to on.  I suspect that might be it.


By: Kevin P. Fleming (kpfleming) 2005-08-30 22:48:46

This is an essentially unsupported channel driver, and will be deprecated for the 1.2 release and removed once the new development tree opens.

However, we can get this fixed if you can provide a _complete_ call trace, not just the one line that you provided.

By: Tomica Crnek (tcrnek) 2005-08-31 02:25:35

Ok, just tell me what do you want me to do to give you "a _complete_ call trace"

By: Kevin P. Fleming (kpfleming) 2005-08-31 14:44:17

Please read the bug posting guidelines, they tell you how to do that.

By: Michael Jerris (mikej) 2005-09-07 16:57:15

suspended pending call trace.  If you are still having troubles producing that , please try to catch up with somone on irc in #asterisk-bugs for assistance.  Please re-open when you have a trace ready for review.  Thanks.