Paul Hayes was thinking very hard :
> Jono wrote:
>> Paul Hayes presented the following explanation :
>>
>>>
>>> What firmware version have you got on it? You should only hear one tone
>>> if only one of the DTMF mode boxes is ticked, what you are describing
>>> sounds like what happens if you've got "Audio" ticked as well as one of
>>> the other modes.
>>
>> Hello again, Paul. Any news on the updated firmware that will allow the R
>> key to function on a SIP call?
>>
>>
> Not yet Jono, you'll be the first to know when I do!


I'm going to try this:

in features.conf

[featuremap]
blindxfer => #1 ; Blind transfer, default is #
disconnect => *0 ; Disconnect (for attended transfer)
atxfer => #2 ; Attended transfer