asterisk users - Jul 2007 - DTMF regeneration on PRI

Hello everyone,

I'm having problems with DTMF regeneration on my incoming PRI.  I see that
when the calling party transmits a DTMF digit, it gets generated at my end
at a slower rate.  Normally this would not be a problem, but several of
these calling party are alarm control panels that send DTMF digits at a
pretty fast clip and require that the DTMF timing be left intact.  I noticed
that this only occurs on the PRI: when I set up tests with CAS channels, the
DTMF seems to be left untouched.  My guess is that the telco is sending the
DTMF out-of-band as messages instead of in-band in the audio stream.
Is it possible to configure the span to receive DTMF in-band? or,
alternatively, is there a way to modify the regeneration rate in Asterisk?

Thanks,

Prashant

P.S. Please correct me if my assessment of the situation is wrong.
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Hello everyone,

I'm having some problems with receiving DTMF on my incoming PRI.  It seems
that incoming DTMF is changed so that it is being generated at a slower
speed.  This is not a problem for voice calls, but some of the traffic on
the PRI consists of alarm control panels that transmit alarms in DTMF
formats.  These panels normally require an acknowledgment from my end after
the alarm is received, but because the DTMF is being received at a slower
rate, the acknowledgment comes late and it is causing all sorts of grief for
the panel.  Please let me know if there is a way to have more accurate
re-generation of the DTMF or even increase the regeneration speed.

Thanks,

Prashant
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