Appendix: glossary

AbbreviationDefinition

2G

2nd Generation

3G

3rd Generation

3GPP

3rd Generation Partnership Project

ADC

Analog to Digital Converter

AIeC

Automatically Initiated eCall

ADN

Abbreviated Dialing Numbers

AMR

Adaptive Multi Rate

AP

Access Point

APN

Access Point Name

ASCII

American Standard Code for Information Interchange

AT

AT Command Interpreter Software Subsystem, or attention

BL

Black List

BSD

Berkley Standard Distribution

CB

Cell Broadcast

CBM

Cell Broadcast Message

CLI

Calling Line Identification

CLIP

Calling Line Identification Presentation

CLIR

Calling Line Identification Restriction

COLP

Connected Line Identification Presentation

COLR

Connected Line Identification Restriction

CM

Connection Management

C/No

Estimated carrier-to-noise-density ratio

CPHS

Common PCN Handset Specification

CR

Carriage Return

CRC

Cyclic Redundancy Check

CS

Circuit Switch

CSD

Circuit-Switched Data

CSG

Closed Subscriber Group

CTS

Clear To Send

CUG

Closed User Group

DA

Destination Address

DARP

Downlink Advanced Receiver Performance

DCD

Data Carrier Detect

DCE

Data Communication Equipment

DCM

Data Connection Management

DHCP

Dynamic Host Configuration Protocol

DM

Device Management

DNS

Domain Name Server

DSR

DSC transponder response

DTE, TE

Data Terminal Equipment

DTMF

Dual Tone Multi Frequency

DTR

Data Terminal Ready

DUT

Device Under Test

EARFCN

E-UTRAN Absolute Radio Frequency Channel Number

eCall

Emergency Call

e-CDRX

Extended Connected Mode DRX

eDRX

Extended Discontinuous Reception

EEP

EEPROM Emulation Parameters

EF

Elementary File

EFCGST

Elementary File "Closed Subscriber Group Type"

EFHNBN

Elementary File "Home Node B Number"

EFPLMNwAcT

Elementary File "User controlled PLMN Selector with Access Technology"

EFHPPLMN

Elementary File "Higher Priority PLMN search period"

eIM

eCall In-band Modem

EONS

Enhanced Operator Name from SIM-files EFOPL and EFPNN

EPD

Escape Prompt Delay

EPS

Evolved Packet System

eSIM

Embedded Subscriber Identity Module

ETSI

European Telecommunications Standards Institute

E-UTRAN/EUTRAN

Evolved UTRAN

FDN

Fixed Dialling Number

FOAT

Firmware Over AT

FOTA

Firmware Over The Air

FS

File System

FTP

File Transfer Protocol

FW

Firmware

FWINSTALL

Firmware Install

GAS

Grouping information Alpha String

GEO

Geostationary Earth Orbit

GERAN

GSM/EDGE Radio Access Network

GPIO

General Purpose Input Output

GPRS

General Packet Radio Service

GPS

Global Positioning System

GSM

Global System for Mobile Communications

GSO

Geostationary Orbit

HDLC

High Level Data Link Control

HNB

Home Node B

HPLMN

Home PLMN

HTTP

HyperText Transfer Protocol

I

Information

I2C

Inter-Integrated Circuit

I2S

Inter IC Sound or Integrated Interchip Sound

ICCID

Integrated Circuit Card ID

ICMP

Internet Control Message Protocol

ICP

Inter Processor Communication

IDP

IsatData Pro

IMEI

International Mobile Equipment Identity

IMS

IP Multimedia Subsystem

IMSI

International Mobile Station Identity

InBM

In-Band Modem (generic)

IP

Internet Protocol

IRA

International Reference Alphabet

IRC

Intermediate Result Code

ISDN

Integrated Services Digital Network

ISP

Internet Service Provider

IVS

In-Vehicle System (eCall related)

L3

Layer 3

LCP

Link Control Protocol

LEO

Low Earth Orbit

LF

Line Feed

LNS

Linux Network Subsystem

LwM2M

Lightweight M2M

M2M

Machine-To-Machine

MCC

Mobile Country Code

ME

Mobile Equipment

MIeC

Manually Initiated eCall

MMI

Man Machine Interface

MN

Mobile Network Software Subsystem

MNC

Mobile Network Code

MNO

Mobile Network Operator

MO

Mobile Originated

MS

Mobile Station

MSC

Modem Status Command

MSD

Minimum Set of Data (eCall related)

MSIN

Mobile Subscriber Identification Number

MSISDN

Mobile Systems International Subscriber Identity Number

MSPR

Multi-Slot Power Reduction

MT

Mobile Terminated

MWI

Message Waiting Indication

NAA

Network Access Application

NAS

Non Access Stratum

NGSO

Non-Geostationary Orbit

NITZ

Network Identity and Time Zone

NTN

Non-Terrestrial Network

NVM

Non-Volatile Memory

ODIS

OMA-DM IMEI Sync

OLCM

On Line Commands Mode

PAD

Packet Assembler/Disassembler

P-CID

Physical Cell Id

PCN

Personal Communication Network

PDP

Packet Data Protocol

PDU

Protocol Data Unit

PIN

Personal Identification Number

PLMN

Public Land Mobile Network

PPP

Point-to-Point Protocol

PSAP

Public Safety Answering Point (eCall related)

PSD

Packet-Switched Data

PSK

Private Shared Key

PUK

Personal Unblocking Key

QoS

Quality of Service

RAM

Random Access Memory

RDI

Restricted Digital Information

RFU

Reserved for Future Use

RI

Ring Indicator

RNDIS

Remote Network Driver Interface Specification

RRC

Radio resource control

RTC

Real Time Clock

RTP

Real-time Transport Protocol

RTS

Request To Send

Rx

Receiver

SAP

SIM Access Profile

SC

Service Centre

SI

SIM Application Part Software Subsystem

SIP

Session Initiation Protocol

SIM

Subscriber Identity Module

SMS

Short Message Service

SMSC

Short Message Service Center

SMTP

Simple Mail Transfer Protocol

SoR

Steering of Roaming

SDIO

Secure Digital Input Output

SES

Speech Enhancement System

STA

station

SSID

Service Set Identifier

TA

Terminal Adaptor

TCP

Transfer Control Protocol

TE

Terminal Equipment

TFT

Traffic Flow Template

TP

Transfer layer Protocol

Tx

Transmitter

TZ

Time Zone

UCS2

Universal Character Set

UDI

Unrestricted Digital Information

UDP

User Datagram Protocol

UI

Unnumbered Information

UICC

Universal Integrated Circuit Card

UIH

Unnumbered Information with header Check

URC

Unsolicited Result Code

USIM

UMTS Subscriber Identity Module

UTRAN

Universal Terrestrial Radio Access Network

UUS1

User-to-User Signalling Supplementary Service 1

UW

Unique Word

WLAN

Wireless Local Area Network

ZTP

Zero Touch Provisioning

Last updated: Jan 13, 2025
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