[asterisk-users] DTMF Issues

[Dovid Bender]

----- Original Message ----- 
From: "Barton Fisher" <bpvoipcom at gmail.com>
To: "Asterisk Users Mailing List - Non-Commercial Discussion" 
<asterisk-users at lists.digium.com>
Sent: Wednesday, October 07, 2009 18:25
Subject: [asterisk-users] DTMF Issues


>I have a block of DID's that I ported to Vitelity about 7 days ago.  The
> problem is if a POTS caller dials into the system, his dtmf is not heard
> at READ() or Background() while a prompt is played.  After the prompt is
> finished, then dtmf is heard.  I've been working with their support, but
> it still not resolved. SIP callers are not effected.
>
> Yesterday, I purchased a DID from Flowroute.  The setting are the same
> as Vitelity.  And amazingly, this DID works perfectly. This to me would
> indicate the problem whatever it is, is Vitelity or its upstream
> provider. - Am I right here??
>
> Also, I have other DID blocks that have been with Vitelity for a while
> that do not have this issues.  I'm told the upline carrier is the same.
>
> So I'm reaching out to you guys to give me ideas of what could be
> causing the problem and how I can resolve
>
> Thanks, Bart
>
Enable dtmf under full in logger.conf do tail -f /var/log/asterisk/full, 
call in and enter some DTMF. If you see that it is delayed chances are it is 
your carrier. Also what are you using for DTMF (rfc2833, Inband etc.) ?