[asterisk-users] How to send DTMF on Zaptel with 50ms tone duration and 50ms gap between the digits?

[Zeeshan Zakaria]

Hi,

After some testing I've found out that my client's hardware recognizes DTMF
only if digits are sent 50ms apart with 50ms of tone duration. This was
tested using a test device which generates DTMF.

Now asterisk doesn't do it by default because digits going out from Asterisk
are not being recognized.

Using command sendDTMF, I can control inter-digit duration, and using
toneduration I can control duration of tone per digit. But I can't find a
way to do both at the same time

Application sendDTMF simply ignores the value set in toneduration and sends
DTMF at some default value, which I don't know what it is, but it is
obviously not 50ms because the hardware can't reliably recognized the
digits.

Is there a way I can send digits with 50ms tone duration and 50ms gap
between them?

-- 
Zeeshan A Zakaria
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