ed at kapitein.org
Tue Oct 4 19:06:57 CEST 2011
A while ago i tried to connect 2 freerunners over the GSM band.
But there was too much phase shift, to get a working signal, so i let it
rest for a while.
But last week i stumbled on this  page which stated that for a voice
call you need to
end the number with ;
so i tried it without the ; and you get a data call instead !
I managed to couple the two FR's in this way, but the connection is not
Is there documentation on how to use the "data modem" part of the GSM modem?
I am looking for baudrates, compression, error correction etc.
So far i have it somewhat stable on +/- 1200 Baud, using tc to control
(without it the modem will lockup, like it does when using gprs sometimes)
On 09/29/2010 09:19 PM, Ed Kapitein wrote:
> Hi all,
> I recently bought another freerunner and i have a "plan" with my
> provider that will give me free calls between my family members.
> Is there someone who ever hookup up two freerunners, using phonecalls?
> I took a look at  that uses a linmodem, software only modem.
> With this software you can hook up two computers using the soundcards.
> Is Something simmilar possible wit 2 FR 's?
> Kind regards,
>  http://bellard.org/linmodem.html
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