Connections
network switching subsystem
Entity
GPRS core network
Entity
Signalling System No. 7
Entity
SMS
Entity
Global System for Mobile Communications
Entity
Internet Protocol
Entity
communication protocol
Entity
General Packet Radio Service
Entity
Universal Mobile Telecommunications System
Entity
packet switching
Entity
roaming
Entity
3GPP
Entity
circuit switching
Entity
International mobile subscriber identity
Entity
Advanced Mobile Phone System
Entity
CDMA2000
Entity
Digital AMPS
Entity
3rd Generation Partnership Project 2
Entity
Short Message Service Center
Entity
SIGTRAN
Entity