Relevant messages from the * list for the current discussion are: 009177.html 009268.html 0498.html 0849.html
My setup is an Eicon Diva (HiSax: Eicon.Diehl Diva driver Rev. 1.1.4.2) running on standard debian woody.
First configure your card and make it work with minicom or something like it, then go for *. The relevant part of the modem.conf file in my case is:
msn=XXXXXXXX incomingmsn=* group=1 device => /dev/ttyI0 device => /dev/ttyI1 features=dtmf,noquelch
In that setup, in extensions.conf I dial with the following line:
exten => _9NXXXXXXX,2,Dial(Modem/g1:${EXTEN:1})
Use Modem/ttyI0 or Modem/ttyI1 if you have channel preferences.After a standard instalation and setup, my DTMF detection was unreliable. I received 1,2,3, sometimes 7,8,9, and never 4,5,6. First thing I tried (see the cited messages) was a kernel upgrade to 2.4.21 (woody has 2.4.18). AFAIK, this solved the problem. However, based on discussions on this list, I went further and tried the patches referenced in the messages (thanks to the authors!). I patched the kernel and a few modem related files in the channels directory (Pauline Middlelink's patches). Everything is working fine now for DTMF detection.
Current problems are: -outbound calls (h323->*->out) to analog phones have echo. This gets better with a better mic, but does not disappear. It seems that no solution to this problem is available.
-my callees complain of the silence supression. I have not looked at it yet.
Please correct and comment.
pedro
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