Subject: Re: [asterisk-dev] DTMF length (Re: [svn-commits] russell:,
branch 1.4 r61763 - /branches/1.4/main/channel.c)
fh at danovation.dk
Tue Apr 24 10:57:51 MST 2007
the values 80/45 is what i usually patches our systems to.
the value 80 is high enough to allow 'dtmf cut-through' on most IVR
system. People often raise the 'on-time' detection to 60-65 ms increase
'talk-off detection', false hits from background noise etc.
If the cycle time (80+45) is higher than 125 ms then a lot of alarm
system won't work, the ones I have tested sends 6-8 digit per seconds.
So the 80/45 sounds great to me. thanks.
> asterisk at ntplx.net wrote:
>> > So my vote is to drop it to 80ms tone and force a 45ms delay until the next
>> > DTMF digit as part of the total time (if it could be done that way).
> Thanks for the feedback! I will work on it right now. I will change
> the minimum digit length to 80ms, and enforce a gap of at least 45ms
> between digits.
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