[asterisk-users] DTMF problems

[Kohler, Jeffrey]

Sorry, I'm using Asterisk to dial out to the first user using SIP and a
telephony gateway provider.  I then dial out to the second user using
SIP and a telephony gateway provider and bridge the two calls.

The first user can press keys on their telephone if necessary to be
connected with the second user (if for example the second user is at a
company and needs to be dialed by extension).  I guess this would be
'inband DTMF'.

If this problem is indeed caused by poor sound quality, are there any
suggestions for improvement?



-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Moises
Silva
Sent: Monday, August 07, 2006 10:09 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] DTMF problems

Well, since you are not providing technical information like
protocols, I only can tell you that if you are using inband DTMF, yes,
is possible that poor quality in the link makes DTMF go wrong.

Regards

On 8/7/06, Kohler, Jeffrey <J.Kohler at techsmith.com> wrote:
>
>
>
>
> I'm having problems where touch tones are being misinterpreted.
>
>
>
> I have a setup where one user can dial out through Asterisk to second
user's
> telephone.
>
>
>
> (User1 - real phone - VOIP provider - Asterisk - VOIP provider - real
phone
> - user2)
>
>
>
> My problem occurs when you need to dial an extension or navigate a
phone
> tree to reach the second user.  When the first user uses their
telephone
> keypad to enter the extension, their keypresses are often
misinterpreted by
> the second user's phone system.
>
>
>
> I'm wondering if poor sound quality could cause the tones to become
altered?
>  Any ideas or suggestions?
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