[Asterisk-Users] DTMF out to Cell Phone

[John Fullington]

Steve,
The cellular system is Cingular, and as I said it works fine if the call is
made from the cell phone to asterisk, so I don't think it's the cell switch,
If the call is made through the asterisk box using a pri line, Digum T100P,
to a cell phone then the DTMF does not work, for any application.

Thanks for you response,
John

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com]On Behalf Of Steve
Underwood
Sent: Wednesday, March 09, 2005 7:55 AM
To: fje at fullnet.com; Asterisk Users Mailing List - Non-Commercial
Discussion
Subject: Re: [Asterisk-Users] DTMF out to Cell Phone


Hi John,

You didn't say what kind of cellular system. If its an AMPS system (I
don't think any other analogue cellular stiff exists) DTMF is quite
troublesome. If it is a digital network the DTMF actually comes from the
basestation, rather than the phone. Its is normally very high quality.
However, its timing is nothing like the timing of the button pushes on
the handset. The basestation stretches the digits to rather long ones.
Possibly as much as a second each.

Regards,
Steve


John Fullington wrote:

>I set up a monitoring system that calls my techs when a problem occurs on
>one of our networks, everything works fine unless  asterisk calls a cell
>phone in which case the tech can not respond using dtmf. It works fine if
>the tech call in but not if asterisk call a tech's cell phone. Anyone one
>have any suggestions?
>
>Thanks
>John Fullington
>
>

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Content preview:  Hi John, You didn't say what kind of cellular system.
  If its an AMPS system (I don't think any other analogue cellular stiff
  exists) DTMF is quite troublesome. If it is a digital network the DTMF
  actually comes from the basestation, rather than the phone. Its is
  normally very high quality. However, its timing is nothing like the
  timing of the button pushes on the handset. The basestation stretches
  the digits to rather long ones. Possibly as much as a second each.
  [...]

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 0.5 URIBL_WS_SURBL         Contains an URL listed in the WS SURBL blocklist
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