[asterisk-dev] DTMF adventures - DAHDI?

Richard Mudgett rmudgett at digium.com
Wed Feb 2 12:05:01 CST 2011

----- Original Message -----
> In my DTMF duration adventures, I tried looking into DAHDI. Seems like
> DAHDI totally ignores the duration of DTMF.
> Is this really true or did I miss something?
> The function dahdi_digit_end for PRI just does nothing and for other
> channel types doesn't seem to bother with duration.
PRI stores the digits to pass in out of band INFORMATION messages during overlap dialing.  Once overlap dialing is complete, PRI falls back to the same as analog to generate DTMF tones.  The regenerated DTMF tones do not bother with duration that I am aware.


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