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GPRS is a mobile communications standard that runs on 2G and 3G networks to enable moderately high-speed data transfers. General packet radio service (GPRS) is a mobile communications standard that operates on 2G and 3G cellular networks to enable moderately high-speed data transfers using packet-based technologies.

GTPv2 is primarily used for control signaling between the Serving Gateway (SGW) and the Packet Data Network (PDN) Gateway (PGW) in an Evolved Packet Core (EPC) network. The 3rd-Generation Partnership Project (3GPP) develops globally acceptable specifications for 3rd-Generation (3G) mobile systems.

Two types of services are provided by GPRS: Point-to-point (PTP) Point-to-multipoint (PTM)

What is GPRS (General Packet Radio Services)? General Packet Radio Services (GPRS) is a best-effort packet-switching protocol for wireless and cellular network communication services. It is considered best effort because all packets are given the same priority and the delivery of packets isn't guaranteed.

GPRS Tunneling protocol is an IP/UDP based protocol used in GSM, UMTS and LTE networks. GTP can be decomposed into separate protocols, GTP-C, GTP-U and GTP. GTP-C is used within the GPRS core network for signaling between the gateway GPRS support nodes (GGSN) and serving GPRS support nodes (SGSN).

GTP allows mobile subscribers to use their phones (user equipment) to maintain a connection to a Packet Data Network (PDN) for internet access while on the move. GTP uses tunnels to allow two GPRS support nodes (GSNs) to communicate over a GTP-based interface and to separate traffic into different communication flows.