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DEFINITIONS AND TERMINOLOGY
API Application Programming Interface
AT Attention
CORBA Common Object Request Broker Architecture
CSD Circuit Switched Data
DAI Digital audio interface
GIOP General Inter-ORB Protocol, General Inter-Object Request Broker Protocol
GSM Group Special Mobile, Global System for Mobile Communications
GPRS General Packet Radio Service
HSCSD High Speed Circuit Switched Data
IDL Interface Definition Language
M2M Machine-to-Machine, Man-to-Machine, Machine-to-Man
MO Mobile Originated
MT Mobile Terminated
ORB Object Request Broker
PC Personal Computer
PIN Personal Identity Number
PUK Personal Unblocking Key
SIM Subscriber Identity Module
SM Short Message
SMS Short Message Service
SMSC Short Message Service Centre
USSD Unstructured Supplementary Services Data