[Asterisk-Users] DTMF and ivr systems

[Shane]

Hi Marco,

Yeah, using g.711-u for all network traffic for that
reason.  One just can't dial too fast as from my reading of
the debug logs, Asterisk is detecting the tone, dropping
the bridge and retransmitting once the tone is complete. 
My handset can key quite quickly so am not surprised it
misses.

S

On Thu, Jun 29, 2006 at 06:50:50PM +0100, Marco Mouta wrote:
> Hope this could help,
> 
> Please note Inband DTMF won't work unless the codec is ulaw or alaw
> (G711). Use out of band DTMF aka rfc2833 or info.
> 
> http://www.voip-info.org/tiki-index.php?page=Asterisk+sip+dtmfmode
> 
> best regards,
> Marco Mouta
> 
> ps.give me some feedback if it worked
> 
> On 6/29/06, Shane <shane-asterisk at cm.nu> wrote:
> >Hello,
> >
> >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.
> >
> >Best,
> >Shane
> >
> >
> >--
> >http://www.cm.nu/~shane/
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> 
> -- 
> Com os melhores cumprimentos,
> 
> Marco Mouta
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