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Rob Scott

2005-Jul-01 08:45 UTC

[Asterisk-Users] Problem with DTFM and complex international setup

We have some guys working in the US who can't always dial back to our
company in Europe easily (lots of clients require authorization to make
international calls), so I set up the following:

   - ipkall.com number links to a FWD number
   - office Asterisk box registers with FWD

Then I programmed Asterisk to accept office extension number using DTFM
tones.
This works OK.

Then I programmed Asterisk so that it is possible, using a PIN code, to
dial out from Asterisk onto the local PSTN.

This also works occasionally.
Looking at the message from the Asterisk box it is clear that sometimes
numbers are missed or repeated in the dial string. This I suspect is
because Asterisk is listening to the DTMF tones but the signal is
dropped; sometimes the drop means that a whole digit is dropped and
sometimes is means that a digit is repeated.

Does anyone know how I can fix this to make it more reliable
(out-of-band DTMF?) or a better way to achieve a reliable setup?

Mohit Muthanna

2005-Jul-01 14:24 UTC

head link

[Asterisk-Users] Problem with DTFM and complex international setup

Try compiling Asterisk with RELAX_DTMF (See Makefile).

Mohit.

On 7/1/05, Rob Scott <Rob_Scott@epam.com> wrote:> We have some guys working in the US who can't always dial back to our
> company in Europe easily (lots of clients require authorization to make
> international calls), so I set up the following:
> 
>    - ipkall.com number links to a FWD number
>    - office Asterisk box registers with FWD
> 
> Then I programmed Asterisk to accept office extension number using DTFM
> tones.
> This works OK.
> 
> Then I programmed Asterisk so that it is possible, using a PIN code, to
> dial out from Asterisk onto the local PSTN.
> 
> This also works occasionally.
> Looking at the message from the Asterisk box it is clear that sometimes
> numbers are missed or repeated in the dial string. This I suspect is
> because Asterisk is listening to the DTMF tones but the signal is
> dropped; sometimes the drop means that a whole digit is dropped and
> sometimes is means that a digit is repeated.
> 
> Does anyone know how I can fix this to make it more reliable
> (out-of-band DTMF?) or a better way to achieve a reliable setup?
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users@lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
> 

-- 
Mohit Muthanna [mohit (at) muthanna (uhuh) com]
"There are 10 types of people. Those who understand binary, and those
who don't."

Rob Scott

2005-Jul-01 14:48 UTC

head link

[Asterisk-Users] Problem with DTFM and complex international setup

I don't find this option in the Makefile.
I find RADIO_RELAX which is something to do with radios and DTMF. 

-----Original Message-----
From: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Mohit
Muthanna
Sent: 01 July 2005 23:24
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] Problem with DTFM and complex
international setup

Try compiling Asterisk with RELAX_DTMF (See Makefile).

Mohit.

On 7/1/05, Rob Scott <Rob_Scott@epam.com> wrote:> We have some guys working in the US who can't always dial back to our 
> company in Europe easily (lots of clients require authorization to 
> make international calls), so I set up the following:
> 
>    - ipkall.com number links to a FWD number
>    - office Asterisk box registers with FWD
> 
> Then I programmed Asterisk to accept office extension number using 
> DTFM tones.
> This works OK.
> 
> Then I programmed Asterisk so that it is possible, using a PIN code, 
> to dial out from Asterisk onto the local PSTN.
> 
> This also works occasionally.
> Looking at the message from the Asterisk box it is clear that 
> sometimes numbers are missed or repeated in the dial string. This I 
> suspect is because Asterisk is listening to the DTMF tones but the 
> signal is dropped; sometimes the drop means that a whole digit is 
> dropped and sometimes is means that a digit is repeated.
> 
> Does anyone know how I can fix this to make it more reliable 
> (out-of-band DTMF?) or a better way to achieve a reliable setup?
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users@lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
> 

--
Mohit Muthanna [mohit (at) muthanna (uhuh) com] "There are 10 types of
people. Those who understand binary, and those who don't."
_______________________________________________
Asterisk-Users mailing list
Asterisk-Users@lists.digium.com
http://lists.digium.com/mailman/listinfo/asterisk-users
To UNSUBSCRIBE or update options visit:
   http://lists.digium.com/mailman/listinfo/asterisk-users

Rob Scott

2005-Jul-12 09:44 UTC

head link

[Asterisk-Users] Problem with DTFM and complex international setup

I don't think so.
 
Your problem seems to do with your not being able to use an IAX client
to transmit DTMF tones properly somehow.
 
I am using a normal phone to connected to FWD which then connects to an
Asterisk server using IAX protocol.
The point is that between the phone and the far Asterisk server, I guess
that the tones are being sent as audio and not as inbound messages.
So the far Asterisk server has to listen to the audio for the tones.
On an unstable connection, it is sometimes missing a tone, or hearing a
break in a tone and thinking that it is two identical tones, which
results in a mis-interpreted number sequence at the other end.
 
So I think the problems are different.
 
________________________________

From: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Mark
Edwards
Sent: 03 July 2005 02:20
To: mohit@muthanna.com; Asterisk Users Mailing List - Non-Commercial
Discussion
Subject: Re: [Asterisk-Users] Problem with DTFM and complex
international setup


Do you think this might have an impact on
http://bugs.digium.com/view.php?id=4631?
 
Mark

 
On 7/3/05, Mohit Muthanna <mohit.muthanna@gmail.com> wrote: 

	Right... that's the one. My mistake.
	
	On 7/1/05, Rob Scott <Rob_Scott@epam.com > wrote:
	> I don't find this option in the Makefile.
	> I find RADIO_RELAX which is something to do with radios and
DTMF.
	>
	> -----Original Message-----
	> From: asterisk-users-bounces@lists.digium.com
	> [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of
Mohit
	> Muthanna
	> Sent: 01 July 2005 23:24 
	> To: Asterisk Users Mailing List - Non-Commercial Discussion
	> Subject: Re: [Asterisk-Users] Problem with DTFM and complex
	> international setup
	>
	> Try compiling Asterisk with RELAX_DTMF (See Makefile). 
	>
	> Mohit.
	>
	> On 7/1/05, Rob Scott <Rob_Scott@epam.com> wrote:
	> > We have some guys working in the US who can't always dial
back to our
	> > company in Europe easily (lots of clients require
authorization to
	> > make international calls), so I set up the following:
	> >
	> >    - ipkall.com number links to a FWD number 
	> >    - office Asterisk box registers with FWD
	> >
	> > Then I programmed Asterisk to accept office extension number
using
	> > DTFM tones.
	> > This works OK.
	> >
	> > Then I programmed Asterisk so that it is possible, using a
PIN code, 
	> > to dial out from Asterisk onto the local PSTN.
	> >
	> > This also works occasionally.
	> > Looking at the message from the Asterisk box it is clear
that
	> > sometimes numbers are missed or repeated in the dial string.
This I 
	> > suspect is because Asterisk is listening to the DTMF tones
but the
	> > signal is dropped; sometimes the drop means that a whole
digit is
	> > dropped and sometimes is means that a digit is repeated. 
	> >
	> > Does anyone know how I can fix this to make it more reliable
	> > (out-of-band DTMF?) or a better way to achieve a reliable
setup?
	> > _______________________________________________ 
	> > Asterisk-Users mailing list
	> > Asterisk-Users@lists.digium.com
	> > http://lists.digium.com/mailman/listinfo/asterisk-users 
	> > To UNSUBSCRIBE or update options visit:
	> >    http://lists.digium.com/mailman/listinfo/asterisk-users
	> >
	>
	>
	> --
	> Mohit Muthanna [mohit (at) muthanna (uhuh) com] "There are 10
types of
	> people. Those who understand binary, and those who don't."
	> _______________________________________________ 
	> Asterisk-Users mailing list
	> Asterisk-Users@lists.digium.com
	> http://lists.digium.com/mailman/listinfo/asterisk-users 
	> To UNSUBSCRIBE or update options visit:
	>    http://lists.digium.com/mailman/listinfo/asterisk-users
	>
	
	
	--
	Mohit Muthanna [mohit (at) muthanna (uhuh) com] 
	"There are 10 types of people. Those who understand binary, and
those
	who don't."
	_______________________________________________
	Asterisk-Users mailing list
	Asterisk-Users@lists.digium.com
	http://lists.digium.com/mailman/listinfo/asterisk-users
	To UNSUBSCRIBE or update options visit:
	   http://lists.digium.com/mailman/listinfo/asterisk-users
<http://lists.digium.com/mailman/listinfo/asterisk-users> 
	




-- 
regards,

Mark P. Edwards
FWD: 667917

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