Glossary of terms | Department of Telecom eServices Portal
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PSTN charges
Public Switched Telecom Network charges
Public Land Mobile Network

or “PLMN” means a land based public mobile network;

Public Switched Telephone Network

or “PSTN” means a fixed public telephone network providing a two-way switched telecommunication service;

Public Utility Service

means a telecommunication service, as declared by the Central Government from time to time, for use of general public by access through telecommunication network;

QoS
Quality of Services
Revenue sharing regime
New Telecom Policy - 99 introduced the 'Revenue Share Regime' in which telecom service providers, in place of the fixed license fee were required to pay a percentage of their Adjusted Gross Revenue (AGR) as licence fee
RF frequency

Radio frequencies (RF)

RLO
Regional Licensing Office- Regional Office Units of WPC (for North, South, East and West Zones)
Roaming

means a telecommunication service that allows mobile terminal users to continue to use the telecommunication services subscribed in its home network, while travelling outside the geographical coverage area of the home network, by means of using a visited network;

Roaming charges
Roaming is the ability for a cellular customer to automatically make & receive voice calls, send & receive data, or access other services when traveling outside the geographical coverage area of the home network, by means of using a visited network. The charges for this facility is Roaming charges
RoW

Right of Way

RTR

The Radio Telephony Restricted (Aeronautical) license – permits Air Crew and Engineers to use the necessary wireless equipment in order to communicate with Air Traffic Control (ATC) or ground stations. Wireless Planning & Coordination (WPC) Wing issue this license.

SACFA
Standing Advisory Committee on Frequency Allocation (India). It provides recommendation of frequency reallocation and creates a frequency allocation plan. In order to run a radio station or anything similar within a certain frequency.
Sales Tax
Sales tax is a consumption tax imposed by the government on the sale of goods and services
SARAL SANCHAR Portal
"SARAL" stands for ' Simplified Application for Registration and Licenses
SATCOM

Satellite Based Communication Network

SATCOM NOCC

Network Operations and Control Centre (NOCC) About us: Satellite based communications services

Satellite System

or “satellite network” means a telecommunication network comprising satellites, system control centers, gateways, together with associated telecommunication networks and terminals that enable direct communication channels between satellites and terminals, as well as connections to land networks through feeder links;

Service Area

means the geographical area for which the authorisation for provision of telecommunication service is granted, which can be of two types:
(i) National Service Area which refers to the territory of India, territorial waters of India, and the
Continental Shelf and Exclusive Economic Zone of India, in accordance with the Section 55 of the
Act; and
(ii) Telecom circle or metro service area which refers to service areas listed in Schedule B to these rules;

Service Tax
Service tax is a tax levied by the government on service providers on certain service transactions, but is actually borne by the customers. It is categorized under Indirect Tax and came into existence under the Finance Act, 1994
Sim

means Subscriber Identity Module (SIM), by whatever name called and it includes embedded SIM (e-SIM), Integrated SIM (iSIM), soft SIM, or any other equivalent SIM, available in any form factor, used for securely storing a unique telecommunication identifier and its related authentication keys to identify and authenticate user on the telecommunication network of the authorised entity;

SSID

Service Set Identifier. the name of a wireless network that helps you connect your device to the right network.

Stub-Cable

means pre-laid, open-ended submarine cable placed from a cable landing station into sea waters;

Subscriber Data Record

or “SDR” means a comprehensive repository of user information maintained by each authorised entity, in the format as may be specified by the Central Government;

SUC
Spectrum Usage Charges - In addition to License Fee, wireless service providers are required to pay Spectrum Usage Charges as a percentage of AGR.
Supplementary services
GSM offers three basic types of services: Telephony services or teleservices, Data services or bearer services & Supplementary services. Supplementary services are additional services that are provided in addition to teleservices and bearer services. These services include caller identification, call forwarding, call hold, call waiting, conferencing, number identification, closed user group and barring of outgoing (international) calls
Tariff

shall have the same meaning as provided in the Telecommunication Tariff Orders issued under the TRAI Act;

TB
Trial Balance
TDSAT

Telecom Disputes Settlement and Appellate Tribunal. TDSAT is a tribunal that adjudicates disputes and appeals in the telecom sector in India

TDSAT
Telecom Disputes Settlement and Appellate Tribunal