General Packet Radio Service (GPRS) is used on mobile phones to allow 2G phones to constantly download data at a faster rate (around 32-48Kbps), even while talking to someone with it! The service is split up into classes, the better the class the faster your transfer speed is, for example if you have class 2 GPRS with 3 slots this means you are limited to 8 - 12 kbps upload/ 16 - 24kbps download.
GPRS is available on most new phones with a range of classes to suit them.
Would be good to cite where you got your information from, but good account of GPRS.
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