Glossary of terms | Department of Telecom eServices Portal
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I4C

 Indian Cybercrime Coordination Centre (I4C) was established by MHA, in New Delhi to provide a framework and eco-system for Law Enforcement Agencies (LEAs) for dealing with Cybercrime in a coordinated and comprehensive manner

ICNIRP
International Commission on Non-Ionizing Radiation Protection (ICNIRP)
IFMC
In-Flight and Maritime Connectivity (IFMC)
ILD

International Long-Distance Service (ILD) Service - The ILD Service is basically a network carriage service (also called Bearer) providing International connectivity to the Network operated by foreign carriers.

IMCSNC

Inter Ministerial Committee for Satellite Network Clearance (IMCSNC)

INSAT

India National Satellite System- INSAT

In-Space

means the Indian National Space Promotion and Authorisation Center, which is the autonomous agency within the Department of Space that regulates space sector activities of non-government entities;

Installation charges
Charges for installation of customer terminal equipment
Inter-Circle Traffic

means the telecommunication traffic originating in one Telecom Circle or Metro service area and terminating in another Telecom Circle or Metro service area;

Interconnection

means the commercial and technical arrangements under which authorised entities or licensees, as the case may be, connect their telecommunication equipment, telecommunication network and telecommunication services to enable their users to have access to users, telecommunication services and telecommunication networks of other authorised entities or licensees;

Interconnection charges
A ‘charge’ levied by network operators on other service providers to recover the costs of the interconnection facilities (including the hardware and software for routing, signaling, and other basic service functions) provided by the network operators
International Long Distance (Ild) Network

means a type of telecommunications network for interconnecting with telecommunication networks of foreign carriers;

International Long Distance (Ild) Service

means a type of telecommunication service provisioned over the ILD network;

International Private Leased Circuit (Iplc)

means an international leased circuit connecting a user in India and a user outside India;

Internet

is a global system that:
(a) is logically linked together by a globally unique address, based on Internet Protocol (IP) or its subsequent enhancements or upgradations; and
(b) is able to support communications using the Transmission Control Protocol/Internet Protocol (TCP/IP) suite or its subsequent enhancements/upgradations, and all other IP compatible protocols;

Internet
Internet telephony offers digital telecommunications services based on Voice over Internet Protocol (VoIP) that are provisioned via the Internet
Internet Exchange Point

or “IXP” means a telecommunication equipment at a physical location containing Ethernet switches where multiple telecommunication networks connect to exchange internet traffic;

Internet Exchange Point (Ixp) Service

means a telecommunication service provided using IXP;

Internet Leased Line

or “ILL” means any dedicated link, on wireline or wireless media, from a port on Internet node to user premises and having un-contended capacity;

Internet Of Things

or “IoT” means M2M communications over the internet;

Internet Service

is a type of telecommunication service accessing the internet;

Internet Telephony

means transfer of message(s) including voice signal(s) through internet and internet telephony network shall be construed accordingly;

Intra Circle Traffic

means the telecommunication traffic originating and terminating within boundaries of the same Telecom Circle or Metro service area;

IOT
Inter Operator Traffic
IP-1
Infrastructure for internet and telecom cable services
IP-II

Infrastructure provider category- II - An IP-II license can lease / rent out /sell end to end bandwidth i.e. digital transmission capacity capable to carry a message. Issuance of IP-II License has been discontinued w.e.f. 14.12.05

IPLC
International Private Lease Circuit (IPLC)
IRNSS

Indian Regional Navigation Satellite System (IRNSS)

ISP
Internet Service Provider
ISP (IT)
Internet Service Provider (including Internet Telephony)