I assume you are using g711a/u?
Anything else will have issues with dtmf inband
On Jun 29, 2006, at 2:52 PM, Michael George wrote:
On Thu, Jun 29, 2006 at 10:42:05AM -0700, Shane wrote:
Ther's probably a simple answer to this but I've searched
around and haven't located anything as yet. Is there a way
to have DTMF tones passed through Asterisk without it
messing with them? I am using a tdm21b card and when I
call an ivr system from the telephone handset (routed over
sip or iax2) such as telebanking, the ivr has trouble
recognizing tones. When I tested this with a remote party,
I was told tones were breaking up. For example, a long
press would result in a click, some silence and a small
dtmf on the remote end. Triggering a speed dial didn't go
well either as he heard only a few tones. I have
dtmfmode=inband in sip.conf and have tried relaxdtmf=yes in
zapata.conf.
I realize Asterisk does need to detect dtmf for things like
call parking but can it just pass the audio to the other
side with no regard for whether it's dtmf digits? IE. long
press results in long tone, etc.
We've run into some problems with * and dtmf. *Usually* dialing the
digits more slowly will help. It seems to be worse with some SIP
devices than others. But when calling from my handset on an FXS to
my *
system which goes IAX2 to another * system and then out a VoIP service
line, I can dial as fast as my fingers can go and never miss... snoms
and sipuras on the latter system can have trouble if we dial too
quickly...
--
-M
There are 10 kinds of people in this world:
Those who can count in binary and those who cannot.
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