80591ST10886A Rev.2 Page 197 of 200 2018-07-02
2. GLOSSARY AND ACRONYMS
APN Access Point Name
BCCH Broadcast Control Channel
CSD Circuit Switched Data
CTM Cellular Text Telephone Modems
CTS Clear To Send
DCE Data Circuit-Terminating Equipment (refer to [14])
DRX Discontinuous Reception
DTE Data Terminal Equipment (refer to [14])
DTMF Dual Tone Multiple Frequency
DTR Data Terminal Ready
GBR Guaranteed Bit Rate
GERAN GSM EDGE Radio Access Network
GPIO General Purpose Input/Output
GUI Graphic User Interface
HF Hands Free (old terminology)
HS Hand Set (old terminology)
HSPA High Speed Packet Access
IMS IP Multimedia Subsystem
IRA International Reference Alphabet
ME Mobile Equipment
MSISDN Mobile Station International Subscriber Directory Number
NMEA National Marine Electronics Association
NVM Non-Volatile Memory
PDN Public Data Network
PDP Packet Data Protocol
PDU Protocol Data Unit
PIN Personal Identification Number
PPP Point to Point Protocol
QoS Quality of Service
SIM Subscriber Identification Module