In this section, we clarify most of the commonly used terms, acronyms and abbreviations in a jargon-free manner.

AbbreviationExplanation
3GPPThird-generation Partnership Project
AIRAuthentication Information Request
ASApplication Server
A2PApplication to Person
BGPBorder Gateway protocol
DIAMETERComputer networking protocol for AAA (Authentication, Authorization and Accounting). It is a successor to RADIUS
DiffServDifferentiated Services
DNSDomain Name Server
DoSDenial of Service
DDoSDistributed Denial of Service
ETSIEuropean Telecommunications Standards Institute
FRAFraud Management and Revenue Assurance
FASGGSMA Fraud and Security Group
GGSNGateway GPRS Support Node
GSMAGSM Association
GTGlobal Title
GUIGraphical User Interface
IETFInternet Engineering Task Force
IPInternet Protocol
IPXInternet Packet Exchange
ISPInternet Service Provider
ITUInternational Telecommunications Union
MAPMobile Application Part
MCCMobile Country Code
MNOMobile Network Operator
MPLS
MSISDNMobile station international ISDN number
NENetwork Element
OAMOperation and Maintenance
P2PPerson to Person
PDPPacket Data Protocol
PLMNPublic Land Mobile Network
SAI Send Authentication Information