[arm-allstar] DTMF Issue

[Russell Van Vlack]

Thanks for the pointers.  I really had to tweak the audio around, but I did get it working.  The main change was uncommenting demphasis in simpleusb.conf and setting to yes.
--Russ 


     On Monday, June 15, 2015 2:38 PM, Doug Crompton <doug at crompton.com> wrote:
   

 #yiv7837243091 --.yiv7837243091hmmessage P{margin:0px;padding:0px;}#yiv7837243091 body.yiv7837243091hmmessage{font-size:12pt;font-family:Calibri;}#yiv7837243091 Russell,

  If you go into the Asterisk client - asterisk -rvvv  - you should see each numeral/character displayed on the screen when you send it from your transceiver into the node radio.

Failure to see anything or proper tones is almost always a level or equalization issue.  DTMF is two tone and if the tones are of unequal level (twist) it will not decode properly.

Another clue to not decoding is the tones will not be muted - the other end will hear your tones distinctly.  

Go into simple-usb-tune-menu and make sure the rx level - item 2 - is kiciking up on peaks to just above 5khz with voice.

If it is then perhaps you are using a node radio that needs deemphasis - you can set that to yes and uncomment it in /etc/asterisk/simpleusb.conf  - then restart Asterisk -  astres.sh  -  and recheck the levels.

If noether of those things work then perhpas you have a bad DTMF source. Did you try more than one radio? Also the Chinese radois are notorious for lousy DTMF.  

73 Doug
WA3DSP
http://www.crompton.com/hamradio


Date: Mon, 15 Jun 2015 17:37:52 +0000
From: russellv2 at yahoo.com
To: arm-allstar at hamvoip.org
Subject: [arm-allstar] DTMF Issue

Hi All,
I just got my first BBB up and running using Allstar and am having difficulty getting asterisk to recognize DTMF sent via the radio (through a URI/simpleusb) and/or sent from the allstar web transceiver.  On a very rare occasion, it recognizes the first command sent, but that's it.
If I do 'asterisk -rvvvvv' I get no indication that the DTMF tones are even making it through to asterisk.  (It does not display the Digit/1, etc. message).
I had a thought, which I will check tonight, that maybe the levels aren't set correctly on the received audio, so it's splattering it and the decoder doesn't like it.  This doesn't really make sense, in my mind, when I have the same problem coming from the web interface also.
Any other ideas would be helpful and appreciated.  Thank you.
--Russell (W8AGT)
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