Data over normal GSM call

Matt Manjos matt at
Tue Apr 8 16:41:10 CEST 2008

I don't know about specific cases, but I think that cell phone
companies are more concerned about people using VOIP over data over
gsm voice calls.

There was talk earlier about writing a fax program that uses incoming
calls to receive faxes, and that GSM couldn't transmit decent faxes
because of a quality or bandwidth problem, but I can't remember the
specifics. This might hinder such a setup.


On Tue, Apr 8, 2008 at 10:22 AM, Dan Staley <dlstal2 at> wrote:
> Does anyone know if it is legal (in the standard TOS) with providers
>  (such as ATnT) to send data over a normal phone call?
>  I have plenty of cell minutes (not to mention free calls between certain
>  numbers...) but I dont want to pay for a data I figure if I
>  wanted to, I could just have my phone call my computer and transfer data
>  over the line.
>  Has anyone else looked into this?
>  -Dan Staley
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>  Openmoko community mailing list
>  community at

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