Data over normal GSM call

Tilman Baumann tilman at
Tue Apr 8 17:39:50 CEST 2008

Mikko Rauhala wrote:

> A quick glance finds mostly mentions of 1st gen analog mobiles having
> been used with modems, and notably "At the same time, the speech
> oriented audio compression used in GSM actually meant that data rates
> using a traditional modem connected to the phone would have been even
> lower than with older analogue systems."
The Wikipedia article is somewhat misleading here.

CSD is real data transfer over the GSM network which is translated via 
Gateways into PSTN modem calls. A service of the GSM network.

Somehow they managed to mix that modem via voice stuff into the CSD article.
(Or at least this is how i undrstood this. *g* )

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