asterisk users - Jan 2005 - DTMF issues (handytone)

morn all,
   I ran into a strange issue last night and have not been able to find 
resolution either in documentation (wiki) or experamentation.
   Using a handyton to feed dial tone to a pbx I am able to connect both ways 
with no problem.  If I make a call from the pbx through asterisk I can sent 
DTMF tones with no problem.  If I call into the pbx (through) the Handytone I 
am not able to pass DTMF tones.  I hear a slight beep then silence.  
  I have tried the Handytone set for DTMF info and rfc-2833 (as well as exp 
with inband) as well as the sip.conf entry for it.
   I thought I had a pretty good handle on how DTMF was intercepted and 
regenerated but ... ahhem  ..  guess not.  

Thanks for any Ideas in advance.
mike

-- 
       |- - - - - - - - - - - - - - - - - - - -|
      |-            Mike Dewey    of           -|
     |=   All Technologies Unlimited, Inc       =|
      |-         phone: 303.667.0357           -|
       |- e-mail: mdewey@alltechunlimited.com -|

Hi Mike,
>  I have tried the Handytone set for DTMF info and rfc-2833 (as well as exp
>with inband) as well as the sip.conf entry for it.
>From my experience DTMF with any Grandstram device works well only
with SIP INFO method ... give it a try (remember to set it up on asterisk as
well).

Best regards,
Ivan Meic