GPRS was added to that around 99/2000 to include data, but throughput was very variable maxing out at around 9KB/s in real world
You're close. GSM would support data (did on my old 8210), but at 9600bps. GPRS would go up to 45kbps. Given the dial-up alternatives it wasn't awful. I believe it gets about 115kbps these days, but that's still awful for modern web pages...