GPRS and EDGE in Mobile Phone Bills

Most common GPRS classes in use are as follows:

Class Slots Upload/ Download Speed Class 2 3 8 - 12 kbps upload / 16 - 24 kbps download Class 4 4 8 - 12 kbps upload / 24 - 36 kbps download Class 6 4 24 - 36 kbps upload / 24 - 36 kbps download Class 8 5 8 - 12 kbps upload / 32 - 40 kbps download Class 10 5 16 - 24 kbps upload / 32 - 48 kbps download Class 12 5 32 - 48 kbps upload / 32 - 48 kbps download

Generally speaking, the higher the GPRS class, the faster the data transfer rates.

EDGE (Enhanced Data rates for GSM Evolution) or EGPRS provides data transfer rates significantly faster than GPRS or HSCSD. EDGE increases the speed of each timeslot to 48 kbps and allows the use of up to 8 timeslots, giving a maximum data transfer rate of 384 kbps. In places where an EDGE network is not available, GPRS will automatically be used instead. EDGE offers the best that can be achieved with a 2.5G network, and will eventually be replaced by 3G.