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by kalleboo 4293 days ago
Before this fancy GPRS thing, we used to have something called CSD (circuit-switched data), where your phone could use a raw GSM voice circuit to send data instead of digital audio.

I think we lost that feature in the transition to 3G.

1 comments

GSM data still only gave you 9600bps, though.
The later versions let you bundle multiple channels (at n times the cost) to reach 57 kbps http://en.wikipedia.org/wiki/High-Speed_Circuit-Switched_Dat...