[Asterisk-Users] DTMF in the middle of a call

[Steve Jones]

Sounds like something is detecting whatever vocal tone is occurring as a
DTMF sound, and conveying it inband..  I'm not an expert, but what DTMF
settings do you have?

-----Original Message-----
From: Servetas, Andrew [mailto:andrew.servetas at stroudwater.com] 
Sent: Friday, June 16, 2006 1:22 PM
To: asterisk-users at lists.digium.com
Cc: Servetas, Andrew
Subject: [Asterisk-Users] DTMF in the middle of a call

I found this old post using a Google search for DTMF tones heard during
an Asterisk call.  The calling party does not hear them, only the called
party.

We are experiencing this sporadic DTMF "beep" followed by a momentary
silence on a random number of our calls.  This happens on trunk to SIP
and SIP to SIP calls, so it's not PRI related.

Since this thread is dated 2003, and the reply posted stated there were
patches available, I would think that this issue should have been fixed
in the newest releases of Asterisk.  We are running 1.2.5 at the moment,
shortly moving to 1.2.8 on our test server before rolling it to our
production box.

Does anyone have any ideas?  I've been playing with dtmfmode settings
and relaxdtmf, but nothing seems to increase or eliminate this.

Thanks in advance,
Andy

***********************************************************

Date: Wed, 3 Sep 2003 07:37:06 +0200 (CEST)
From: Jac Kersing <j.kersing at the-box.com>
To: Jay Tyndall <asterisk at tyndall.id.au>
Cc: "asterisk-users at lists.digium.com" <asterisk-users at
lists.digium.com>
Subject: Re: [Asterisk-Users] DTMF Tones During Call
Reply-To: asterisk-users at lists.digium.com
 On Wed, 3 Sep 2003, Jay Tyndall wrote:

> I am receiving calls via a Netjet-S card on asterisk, and I notice
that 
> whenever I am talking to someone, if their voice is loud enough, 
> sometimes asterisk generates a DTMF Tone as they speak. that is played
to 
> me. (Caller doesn't hear it).
>
> Any ideas how to stop this?
 Check the list archive. This has been discussed a number of times.
You'll
need patches (should be archived as well.)
 Regards,
 Jac
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