Gives an orderly presentation of how GPRS works, how it connects the Internet, and how to implement it. This work includes: the complete layout of GPRS system architecture; the function of GPRS elements; various layers described, unpacked, and explained; and interfaces - radio and MS-PCUSN, MS-SGSN, PCUSN-SGSN, SGSN-GGSN, and GGSN-PDN.