openzap_pre_buffer_size is a variable you can set to specific number of MS
60 for example.
it will pre_buffer the audio on the channel so when you detect dtmf it will
completely drop the buffer so all of the original
dtmf should be dropped as well. probably if the dtmf is too long then it
will cau
Does this really fix it ?
I wonder because the problem I see here is also that the FXS side detects
the DTMF and then queues it on the FXO side for generation. That leads to
the called party receiving twice the DTMF, the first one is the inband
DTMF, the second is the one queued/generated by the FX
