Important list of Abbreviations Mostly used in Telecommunication Engineering

Important list of full forms terms Mostly used in Telecommunication Engineering.Telecommunication engineering is a field of engineering that deals with the transmission and reception of information over long distances. Telecommunication engineers work to design, develop, and maintain communication systems that are essential in our daily lives. As with any specialized field, telecommunication engineering has its own set of abbreviations list of telecom, which are commonly used in the industry.

Important list of Abbreviations Mostly used in Telecommunication Engineering
Important list of Abbreviations Mostly used in Telecommunication Engineering
Important list of full forms terms Mostly used in Telecommunication Engineering

Telecommunication engineering is a vital field in our interconnected world. From voice calls to data transmission, telecommunication engineers design, develop, and maintain the systems that make it all possible. The field of telecommunication engineering involves a lot of technical terminology, including a long list of full forms that are commonly used in the industry. Understanding these telecommunication abbreviations is essential for anyone who wants to work in the field of telecommunication engineering.

As with any specialized field, telecommunication engineering has its own set of abbreviations, which are commonly used in the industry. In this blog, we will discuss some of the most commonly used full forms in telecommunication engineering and their meanings.

AC – Alternating Current

ADSL – Asymmetric Digital Subscriber Line

AM – Amplitude Modulation

AMPS – Advanced Mobile Phone System

ASK – Amplitude Shift Keying

AWGN – Additive White Gaussian Noise

BERT – Bit Error Rate Test

B-ISDN – Broadband Integrated Services Digital Network

BPSK – Binary Phase Shift Keying

CATV – Cable Television

CDMA – Code Division Multiple Access

CMTS – Cable Modem Termination System

CO – Central Office

CSMA/CD – Carrier Sense Multiple Access/Collision Detection

dB – Decibel

DCS – Digital Cellular System

DDS – Direct Digital Synthesis

DECT – Digital Enhanced Cordless Telecommunications

DHCP – Dynamic Host Configuration Protocol

DMT – Discrete Multitone

DSSS – Direct Sequence Spread Spectrum

DTMF – Dual Tone Multi-Frequency

E1 – European digital transmission format level 1

E911 – Enhanced 911

EDGE – Enhanced Data rates for GSM Evolution

EIRP – Effective Isotropic Radiated Power

EMS – Enhanced Messaging Service

ESN – Electronic Serial Number

FDD: Frequency Division Duplexing

FEC: Forward Error Correction

FSK: Frequency Shift Keying

GPRS: General Packet Radio Service

GSM: Global System for Mobile Communications




HDLC: High-Level Data Link Control

HDSL: High bit-rate Digital Subscriber Line

HSPA: High-Speed Packet Access

HTTP: Hypertext Transfer Protocol

I/O: Input/Output

IAX: Inter-Asterisk eXchange

ICD: Interface Control Document

IEC: International Electrotechnical Commission

IEEE: Institute of Electrical and Electronics Engineers

IETF: Internet Engineering Task Force

IGP: Interior Gateway Protocol

IMAP: Internet Message Access Protocol

IP: Internet Protocol

IPTV: Internet Protocol Television

IR: Infrared

IRC: Internet Relay Chat

IRDA: Infrared Data Association

ISDN: Integrated Services Digital Network

ISO: International Organization for Standardization

ISP: Internet Service Provider

ITU: International Telecommunication Union

IVR: Interactive Voice Response

LAN: Local Area Network

LDPC: Low-Density Parity-Check

LED – Light Emitting Diode

LOS – Line Of Sight

MAC – Media Access Control

MAN – Metropolitan Area Network

Mbps – Megabits per second

MIMO – Multiple-Input Multiple-Output

MPLS – Multiprotocol Label Switching

MSK – Minimum Shift Keying

MTU – Maximum Transmission Unit

NAT – Network Address Translation

NLOS – Non-Line Of Sight

NTP – Network Time Protocol

OFDM – Orthogonal Frequency Division Multiplexing

OSI – Open Systems Interconnection

OSPF – Open Shortest Path First

PABX – Private Automatic Branch Exchange

PAL – Phase Alternating Line

LTE – Long Term Evolution

VoIP – Voice over Internet Protocol

PSTN – Public Switched Telephone Network

GSM – Global System for Mobile Communications

CDMA – Code Division Multiple Access

WLAN – Wireless Local Area Network

WAN – Wide Area Network

TCP/IP – Transmission Control Protocol/Internet Protocol

QoS – Quality of Service

OSI – Open Systems Interconnection

ISDN – Integrated Services Digital Network

BGP – Border Gateway Protocol

MPL – Multiprotocol Label Switching

SS7 – Signaling System 7

SIP – Session Initiation Protocol

DHCP – Dynamic Host Configuration Protocol

SNMP – Simple Network Management Protocol

NAT – Network Address Translation

ATM – Asynchronous Transfer Mode

RADIUS – Remote Authentication Dial-In User Service

VPN – Virtual Private Network

IEEE – Institute of Electrical and Electronics Engineers

WDM – Wavelength Division Multiplexing

SDH – Synchronous Digital Hierarchy

SONET – Synchronous Optical Network

DWDM – Dense Wavelength Division Multiplexing

VoLTE – Voice over LTE

eNodeB – Evolved Node B

MIMO – Multiple Input Multiple Output

GPRS – General Packet Radio Service

HSPA – High Speed Packet Access

LTE-A – Long Term Evolution-Advanced

OLT – Optical Line Terminal

ONT – Optical Network Terminal

PON – Passive Optical Network

DSL – Digital Subscriber Line




FTTH – Fiber to the Home

FEC – Forward Error Correction

RAN – Radio Access Network

EPC – Evolved Packet Core

IMS – IP Multimedia Subsystem

WAP – Wireless Application Protocol

NFC – Near Field Communication

IMEI – International Mobile Equipment Identity

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SMS – Short Message Service

USSD – Unstructured Supplementary Service Data

SIM – Subscriber Identity Module

CMTS – Cable Modem Termination System

DOCSIS – Data Over Cable Service Interface Specification

FTTN – Fiber to the Node

RTT – Round Trip Time

TCP – Transmission Control Protocol

UDP – User Datagram Protocol

DNS – Domain Name System

HTTP – Hypertext Transfer Protocol

HTTPS – Hypertext Transfer Protocol Secure

FTP – File Transfer Protocol

TFTP – Trivial File Transfer Protocol

SNMP – Simple Network Management Protocol

ICMP – Internet Control Message Protocol

RIP – Routing Information Protocol

OSPF – Open Shortest Path First

BGP – Border Gateway Protocol

VLAN – Virtual Local Area Network

NAT – Network Address Translation

CIDR – Classless Inter-Domain RoutingVRRP – Virtual Router Redundancy Protocol

RSTP – Rapid Spanning Tree Protocol

MSTP – Multiple Spanning Tree Protocol

LACP – Link Aggregation Control Protocol

LLDP – Link Layer Discovery Protocol

SNMPv3 – Simple Network Management Protocol version 3

ACL – Access Control List

IDS – Intrusion Detection System

IPS – Intrusion Prevention System

QoS – Quality of Service

SSO – Single Sign-On

LDAP – Lightweight Directory Access Protocol

SAML – Security Assertion Markup Language

SSL – Secure Sockets Layer

TLS – Transport Layer Security

AES – Advanced Encryption Standard

DES – Data Encryption Standard

RSA – Rivest-Shamir-Adleman

SHA – Secure Hash Algorithm

HMAC – Hash-based Message Authentication Code

EAP – Extensible Authentication Protocol

RADIUS – Remote Authentication Dial-In User Service

TACACS+ – Terminal Access Controller Access-Control System Plus

WPA – Wi-Fi Protected Access

WEP – Wired Equivalent Privacy

SSID – Service Set Identifier

MAC – Media Access Control

OFDM – Orthogonal Frequency-Division Multiplexing

DSSS – Direct Sequence Spread Spectrum

CDMA – Code Division Multiple Access

GSM – Global System for Mobile Communications

LTE – Long-Term Evolution

WiMAX – Worldwide Interoperability for Microwave Access

TDMA – Time Division Multiple Access

FDMA – Frequency Division Multiple Access

SDMA – Space Division Multiple Access

MIMO – Multiple Input Multiple Output

SISO – Single Input Single Output

SIMO – Single Input Multiple Output

MISO – Multiple Input Single Output

OFDMA – Orthogonal Frequency Division Multiple Access

SC-FDMA – Single Carrier Frequency Division Multiple Access

PDU – Protocol Data Unit

PSD – Power Spectral Density

BER – Bit Error Rate

PER – Packet Error Rate

SER – Symbol Error Rate

FER – Frame Error Rate

ETSI – European Telecommunications Standards Institute

ITU – International Telecommunication Union

IETF – Internet Engineering Task Force

IEEE – Institute of Electrical and Electronics Engineers

3GPP – 3rd Generation Partnership Project

3GPP2 – 3rd Generation Partnership Project 2

PHY – Physical Layer

MAC – Media Access Control

RRC – Radio Resource Control

RLC – Radio Link Control

PDCP – Packet Data Convergence Protocol

GTP – GPRS Tunnelling Protocol

SRB – Signalling Radio Bearer

DRB – Data Radio Bearer

PTP – Precision Time Protocol

NTP – Network Time Protocol

VoLTE – Voice over LTE

VoIP – Voice over Internet Protocol

PSTN – Public Switched Telephone Network

ISDN – Integrated Services Digital Network

MPLS – Multi-Protocol Label Switching

GMPLS – Generalized Multi-Protocol Label Switching

LDP – Label Distribution Protocol

RSVP – Resource Reservation Protocol

MPLS-TP – MPLS Transport Profile

IPsec – Internet Protocol Security

IKE – Internet Key Exchange

ESP – Encapsulating Security Payload

AH – Authentication Header

SSL VPN – Secure Sockets Layer Virtual Private Network

IPSec VPN – Internet Protocol Security Virtual Private Network

EPC – Evolved Packet Core

RAN – Radio Access Network

RNC – Radio Network Controller

BTS – Base Transceiver Station

BSC – Base Station Controller

NodeB – Node B

eNodeB – Evolved Node B

E-UTRAN – Evolved Universal Terrestrial Radio Access Network

HSPA – High Speed Packet Access

HSUPA – High Speed Uplink Packet Access

HSDPA – High Speed Downlink Packet Access

VoWiFi – Voice over Wi-Fi

SS7 – Signaling System No. 7

NGN – Next Generation Network

IMS – IP Multimedia Subsystem

PSTN – Public Switched Telephone Network

ATM – Asynchronous Transfer Mode

SONET – Synchronous Optical Network

SDH – Synchronous Digital Hierarchy

DWDM – Dense Wavelength Division Multiplexing

OTN – Optical Transport Network

NMS – Network Management System

EMS – Element Management System

OSS – Operations Support System

BGP – Border Gateway Protocol

OSPF – Open Shortest Path First

MPLS-VPN – Multi-Protocol Label Switching Virtual Private Network

VPLS – Virtual Private LAN Service

MPLS-TE – Multi-Protocol Label Switching Traffic Engineering

VRF – Virtual Routing and Forwarding

CoS – Class of Service

DSCP – Differentiated Services Code Point

AF – Assured Forwarding

EF – Expedited Forwarding

IGP – Interior Gateway Protocol

EGP – Exterior Gateway Protocol

ICMP – Internet Control Message Protocol

IGMP – Internet Group Management Protocol

PIM – Protocol Independent Multicast

SIP – Session Initiation Protocol

RTP – Real-time Transport Protocol

RTCP – Real-time Transport Control Protocol

DNS – Domain Name System

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DHCP – Dynamic Host Configuration Protocol

NAT – Network Address Translation

WLAN – Wireless Local Area Network




MPLS – Multi-Protocol Label Switching

LSR – Label Switching Router

LSP – Label Switched Path

QPSK – Quadrature Phase-Shift Keying

FSK – Frequency Shift Keying

PSK – Phase Shift Keying

OFDM – Orthogonal Frequency Division Multiplexing

MIMO – Multiple Input Multiple Output

SISO – Single Input Single Output

SIMO – Single Input Multiple Output

MISO – Multiple Input Single Output

BER – Bit Error Rate

PER – Packet Error Rate

SNR – Signal to Noise Ratio

SINR – Signal to Interference plus Noise Ratio

CINR – Carrier to Interference plus Noise Ratio

CIR – Carrier to Interference Ratio

EIRP – Effective Isotropic Radiated Power

ERP – Effective Radiated Power

PEP – Peak Envelope Power

EIR – Equipment Identity Register

SIM – Subscriber Identity Module

USIM – Universal Subscriber Identity Module

MSISDN – Mobile Station International Subscriber Directory Number

IMEI – International Mobile Equipment Identity

IMSI – International Mobile Subscriber Identity

HLR – Home Location Register

VLR – Visitor Location Register

AUC – Authentication Center

EIR – Equipment Identity Register

BTS – Base Transceiver Station

BSC – Base Station Controller

MSC – Mobile Switching Center

GGSN – Gateway GPRS Support Node

SGSN – Serving GPRS Support Node

SGW – Serving Gateway

PGW – Packet Data Network Gateway

HLR – Home Location Register

HSS – Home Subscriber Server

VLR – Visitor Location Register

CS – Circuit Switched

PS – Packet Switched

GPRS – General Packet Radio Service

EDGE – Enhanced Data rates for GSM Evolution

UMTS – Universal Mobile Telecommunications System

LTE – Long-Term Evolution

VoLTE – Voice over LTE

SRVCC – Single Radio Voice Call Continuity

RCS – Rich Communication Services

IoT – Internet of Things

OTA – Over-The-Air

ARPU – Average Revenue Per User

E911 – Enhanced 911

CDMA – Code Division Multiple Access

TDMA – Time Division Multiple Access

FDMA – Frequency Division Multiple Access

WLAN – Wireless Local Area Network

WPAN – Wireless Personal Area Network

WMAN – Wireless Metropolitan Area Network

PAN – Personal Area Network

LOS – Line of Sight

NLOS – Non-Line of Sight

ISM – Industrial, Scientific, and Medical

RFID – Radio Frequency Identification

WCDMA – Wideband Code Division Multiple Access

HSPA – High-Speed Packet Access

HSUPA – High-Speed Uplink Packet Access

HSDPA – High-Speed Downlink Packet Access

MBMS – Multimedia Broadcast Multicast Service

QAM – Quadrature Amplitude Modulation

PCM – Pulse Code Modulation

TDM – Time Division Multiplexing

SDH – Synchronous Digital Hierarchy

SONET – Synchronous Optical Networking

DWDM – Dense Wavelength Division Multiplexing

OTN – Optical Transport Network

OLT – Optical Line Terminal

ONU – Optical Network Unit

PON – Passive Optical Network

CMTS – Cable Modem Termination System

DOCSIS – Data Over Cable Service Interface Specification

IPTV – Internet Protocol Television

RTP – Real-Time Transport Protocol

RTCP – Real-Time Control Protocol

VoIP – Voice over Internet Protocol

PSTN – Public Switched Telephone Network

ISDN – Integrated Services Digital Network

PABX – Private Automatic Branch Exchange

SBC – Session Border Controller

VAS – Value-Added Service

NAT – Network Address Translation

OSPF – Open Shortest Path First

BGP – Border Gateway Protocol

MPLS-TP – Multi-Protocol Label Switching – Transport Profile

SDN – Software-Defined Networking

RAN – Radio Access Network

MIMO – Multiple Input Multiple Output

LTE – Long-Term Evolution

VoLTE – Voice over LTE

IMS – IP Multimedia Subsystem

BSS – Base Station Subsystem

OSS – Operations Support System

NMS – Network Management System

EMS – Element Management System

SNMP – Simple Network Management Protocol

ICMP – Internet Control Message Protocol

TCP – Transmission Control Protocol

UDP – User Datagram Protocol

NAT – Network Address Translation

DNS – Domain Name System

DHCP – Dynamic Host Configuration Protocol

MPLS – Multi-Protocol Label Switching

QoS – Quality of Service

SLA – Service Level Agreement

VLAN – Virtual LAN

VoWLAN – Voice over WLAN

WIMAX – Worldwide Interoperability for Microwave Access

DAS – Distributed Antenna System

PTP – Precision Time Protocol

GPS – Global Positioning System

LBS – Location-Based Services

SS7 – Signaling System No. 7

ATM – Asynchronous Transfer Mode

SDP – Service Delivery Platform

CDN – Content Delivery Network

VOD – Video on Demand

STB – Set-Top Box

HDTV – High Definition Television

OFDM – Orthogonal Frequency Division Multiplexing

OFDMA – Orthogonal Frequency Division Multiple Access

RRM – Radio Resource Management

PDCP – Packet Data Convergence Protocol

MAC – Media Access Control

PHY – Physical Layer

BTS – Base Transceiver Station

UE – User Equipment

EPC – Evolved Packet Core

P-GW – Packet Gateway

S-GW – Serving Gateway

HSS – Home Subscriber Server

MME – Mobility Management Entity

RLC – Radio Link Control

GGSN – Gateway GPRS Support Node

SGSN – Serving GPRS Support Node

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GPRS – General Packet Radio Service

EDGE – Enhanced Data Rates for GSM Evolution

HSPA – High-Speed Packet Access

HSUPA – High-Speed Uplink Packet Access

HSDPA – High-Speed Downlink Packet Access

EIR – Equipment Identity Register

SIM – Subscriber Identity Module

ICCID – Integrated Circuit Card Identifier

IMSI – International Mobile Subscriber Identity

IMEI – International Mobile Equipment Identity

MCC – Mobile Country Code

MNC – Mobile Network Code

HLR – Home Location Register

VLR – Visitor Location Register

MSC – Mobile Switching Centre

GMSC – Gateway Mobile Switching Centre

S-CSCF – Serving-Call Session Control Function

I-CSCF – Interrogating-Call Session Control Function

P-CSCF – Proxy-Call Session Control Function

SIP – Session Initiation Protocol

SDP – Session Description Protocol

RTP – Real-Time Transport Protocol

RTCP – Real-Time Control Protocol

PSTN – Public Switched Telephone Network

ISDN – Integrated Services Digital Network

DSL – Digital Subscriber Line

FTTH – Fiber to the Home

ONT – Optical Network Terminal

OLT – Optical Line Terminal

GPON – Gigabit Passive Optical Network

WDM – Wavelength Division Multiplexing

CWDM – Coarse Wavelength Division Multiplexing

DWDM – Dense Wavelength Division Multiplexing

FTTx – Fiber to the x

CDMA – Code Division Multiple Access




TDMA – Time Division Multiple Access

FDMA – Frequency Division Multiple Access

Wi-Fi – Wireless Fidelity

WLAN – Wireless Local Area Network

WMAN – Wireless Metropolitan Area Network

WWAN – Wireless Wide Area Network

RFID – Radio Frequency Identification

ZigBee – Wireless Personal Area Network

Bluetooth – Short-Range Wireless Communication

NFC – Near Field Communication

IoT – Internet of Things

CSIR – Council of Scientific and Industrial Research

GNSS – Global Navigation Satellite System

WSN – Wireless Sensor Network

USB – Universal Serial Bus

MCU – Microcontroller Unit

PWM – Pulse Width Modulation

AGC – Automatic Gain Control

VHF – Very High Frequency

LNA – Low Noise Amplifier

RF – Radio Frequency

ADC – Analog to Digital Converter

DAC – Digital to Analog Converter

LVDT – Linear Variable Differential Transformer

PLC – Programmable Logic Controller

RTD – Resistance Temperature Detector

RFID – Radio Frequency Identification

GSM – Global System for Mobile Communications

CDMA – Code Division Multiple Access

WAN – Wide Area Network

TCP – Transmission Control Protocol

DNS – Domain Name System

HTTP – Hypertext Transfer Protocol

FTP – File Transfer Protocol

VPN – Virtual Private Network

IEEE – Institute of Electrical and Electronics Engineers

IEC – International Electrotechnical Commission

ISO – International Organization for Standardization

CAT – Category (Ethernet Cable)

PoE – Power over Ethernet

QoS – Quality of Service

NAT – Network Address Translation

ICMP – Internet Control Message Protocol

OSPF – Open Shortest Path First

MPLS – Multiprotocol Label Switching

BGP – Border Gateway Protocol

VoIP – Voice over Internet Protocol

PSTN – Public Switched Telephone Network

MPLS – Multiprotocol Label Switching

VLAN – Virtual Local Area Network

RADIUS – Remote Authentication Dial-In User Service

POTS – Plain Old Telephone Service

VDSL – Very-high-bit-rate Digital Subscriber Line

DSL – Digital Subscriber Line

SDN – Software Defined Networking

CPE – Customer Premises Equipment

DOCSIS – Data Over Cable Service Interface Specification

MIMO – Multiple Input Multiple Output

What is CX abbreviation in telecommunication?

The full form of computer is customer experience

What is MTF in telecom?

The full form of computer is Modulation Transfer Function (MTF)

What does SKU mean in telecom?

The full form of computer is stock keeping unit number

What does SMT mean in telecom?

The full form of computer is Surface Mount Technology (SMT) Technician

What is AAV in telecom?

The full form of computer is Alternative Access Vendor

What is MBB and FBB in telecom?

The full form of computer is mobile broadband (MBB) technology, enhanced fixed broadband (FBB)

What is the full form of MCS telecom?

 The full form of computer is Modulation Coding Scheme (MCS)

What is TMO in telecommunications?

The full form of computer is Trunked Mode Operation

What is the full form of telecom ATP?

The full form of computer is ATP – Advanced Telecommunication Platform

What is the full form of LMC telecom?

The full form of computer is Last Mile Communications

What does RLU stand for in telecom?

The full form of computer is Remote Line Unit (RLU) 

What is RRU and BBU in telecom?

A baseband unit (BBU) is a unit that processes baseband in telecomm systems and (remote radio unit – RRU

What is the full form of ITU?

The full form of computer is International Telecommunication Union (ITU)

What is CCNA in telecom?

The full form of computer is CCNA stands for Customer Carrier Name Abbreviation (telecommunications)

What is the full form of CCNP?

 The full form of computer is Cisco Certified Network Professional certification

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