Asterisk had some major issues with rfc2833 in 1.2.X. You should consider 
upgrading.
  ----- Original Message ----- 
  From: abdelkader 
  To: [email protected] 
  Cc: mettichi ; [email protected] 
  Sent: Wednesday, October 14, 2009 11:36
  Subject: [asterisk-users] DTMF failing in some calls


  Hello,

  I am using Asterisk 1.2.33 under Debian ETCH linux.

  I have the following problem with DTMF:

  In my callback system, I calls an access DID. My system calls me back to my 
phone. It asks me for a password to let me dial an international number. If the 
authentication succeeds, I can dial a number in the system.

  Sometimes Asterisk catches only some of the digits I have entered. Sometimes, 
it duplicates some other digits. Sometimes, the system does not catch anything. 
And finally, sometimes it works properly.

  I am using rfc2833 as dtmf mode. 

  Please help.

  Thanks.


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