asterisk users - Jun 2003 - New busydetect routines for analog channels (FXO mostly)

Hello,

I've commited the new busydetect routine to CVS.
You need to cvs update asterisk of course and then choose it
in asterisk/Makefile and recompile asterisk.
All you X100P users that had the problems
with false hangups or the card not being able to detect the busy tone
please check that.

In the asterisk/Makefile you need to find a line
BUSYDETECT 
and uncomment what you want/ comment out what you don't want.

Also in /etc/asterisk/zapata.conf you need to have
busydetect=yes
busycount=<number>

where <number> should be betwen 5 and 15. The best value to try is
busycount=10

Also if you have some strange signal like 3 beeps (200 ms tone, 200 ms
silence) and then silence of e.g. 500 ms then you need to comment out:

BUSYDETECT+= #-DBUSYDETECT_TONEONLY

But then you can't use it with

BUSYDETECT+= #-DBUSYDETECT_COMPARE_TONE_AND_SILENCE

The last 'flag' should enforce detection (less false hangups)
although I tested the algorithm without
-DBUSYDETECT_TONEONLY nor -DBUSYDETECT_COMPARE_TONE_AND_SILENCE
with busycount = 10 and after 1 hour of conversation I didn't have any
false hangups.

regards
Martin

Quite frequently, outgoing calls from the X100P cards here will not dial
properly. Instead of hearing the ringing after the Zap interface picks
up, I'll hear silence for a while then the 'If you'd like to make a
call
please hang up and try again' recording as if zaptel picked up the line,
punched only a couple digits and then left it.

I assume that either zaptel is sending the dtmf before the telco is
ready to get it or is sending the digits too fast. I have tried setting
toggling overlapdial in zaptel.conf, and I have tried fiddling with the
timing parameters a little, but I don't know what each number really
does (and think that bad values here may be bad anyway)

Does anyone have any ideas to accomplish:

1) Delay zaptel sending dtmf by a few milliseconds
2) Have zaptel send dtmf digits slower

Thanks,
John

Yo Martin,

On Tue, Jun 17, 2003 at 17:03:15 -0500, Martin Pycko wrote:
> Hello,
> 
> I've commited the new busydetect routine to CVS.
> You need to cvs update asterisk of course and then choose it
> in asterisk/Makefile and recompile asterisk.
[...]

It fails to compile here (Redhat 9, gcc version 3.2.2 20030222 (Red Hat
Linux 3.2.2-5)):

dsp.c:1055:15: missing terminating ' character
make: *** [dsp.o] Error 1

Seems to be something simple, like the need to escape the "'".


    Grtz,

      Oliver

I have an extension setup with voicemail, for incoming calls on an X100P
card.  It quite often will record about 15 seconds of dialtone... I'm
guessing that it picks up the line after the outgoing line has been
disconnected.

Has anybody else run into this problem?  Shouldn't chan_zap be detecting
the hangup and ending the connection?

Sam
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