asterisk users - Oct 2012 - Caller ID DTMF is not coming

Hi.

I have a problem with the Caller ID in Ukraine - it is not coming, but I
sure that telco is providing it as a DTMF. I have recorded the line
using dahdi_monitor: http://dl.dropbox.com/u/20000962/dtmf.wav
The record contains DTMF codes, first ring and answer of dialplan -- it
is just Playtones(1004/1000) .

I have set "cidsignalling=dtmf" and tried all choices for
"cidstart"
(dtmf, polarity, ring), but have no luck.

If you will open the record in the audio editor, you will see that the
first digit (DTMF "D") is quite louder than other digits (7495727C).
Is
this normal? I have adjusted my "rxgain" parameter on that dahdi
channel, so I think it is the telco issue (DTMF sound overload at its
output side).

I can provide any debug logs, if it they are needed. I sure, that it is
possible to set up the CallerID recognition, because I am able to
recognise them in Audacity! :-)

Thanks!

-- 
Forex Club
System Administrator (Branches & VoIP)
System Support and Services Management
skype me: oioki17

> Alexander Tarasov
> Sent: Friday, 12 October 2012 12:10 p.m.
> To: asterisk-users at lists.digium.com
> Subject: [asterisk-users] Caller ID DTMF is not coming
> 
> Hi.
> 
> I have a problem with the Caller ID in Ukraine - it is not 
> coming, but I sure that telco is providing it as a DTMF. I 
> have recorded the line using dahdi_monitor: 
> http://dl.dropbox.com/u/20000962/dtmf.wav
> The record contains DTMF codes, first ring and answer of 
> dialplan -- it is just Playtones(1004/1000) .
> 
> I have set "cidsignalling=dtmf" and tried all choices for
"cidstart"
> (dtmf, polarity, ring), but have no luck.
> 
> If you will open the record in the audio editor, you will see 
> that the first digit (DTMF "D") is quite louder than other 
> digits (7495727C). Is this normal? I have adjusted my 
> "rxgain" parameter on that dahdi channel, so I think it is 
> the telco issue (DTMF sound overload at its output side).
> 
You'll need to enable DTMF logging in 'logger.conf'
  dtmf => dtmf
Then you can watch /var/log/dtmf or whereever it is on your system.

Also since Asterisk 1.8.18.0-rc1 there are some options in dsp.conf that may
assist, these are to do with DTMF threshold levels.
Have a look at configs/dsp.conf.sample
 
The options are;
  dtmf_reverse_twist
  dtmf_normal_twist
  relax_dtmf_reverse_twist
  relax_dtmf_normal_twist

Initally I'd set all to 100, you may get talkoff when on a call, but atleast
you'll know if CID is working.

Then set back to the appropraite standards of Ukraine, ETSI AT&T etc.

Alec Davis