Information & Communications Technology


Institute of Electrical and Electronics Engineers


Intelligent Infrastructure Management

Intercloset Cables

Cables that connect telecommunications closets.


The Internet is a worldwide system of computer networks - a network of networks in which users at any one computer can, if they have permission, get information from any other computer (and sometimes talk directly to users at other computers).


A private network inside a company or organization that uses the same kinds of software that you would find on the public Internet, but which is only for internal use.


Internet Protocol
The standard for sending the basic unit of data, an IP datagram, through the internet. IP uses packet switching techniques to send data in small chunks (packets).


Just as a physical address identifies a particular building on a particular street an IP address identifies a particular device on a particular network. An IP address is made up of two halves one half designating the network and the other half a device on that network.


IP Telephony
The use of IP signalling methods to send voice traffic across a data network. Voice signals are broken down into packets and reassembled at the receiving end. This eliminates the need for separate voice and data networks by converging all traffic on one network.

IP Gateway - VoIP Gateway

A gateway for an existing telephone system, which converts normal circuit-switched telephony traffic into IP for transmission over a data network, such as a private data network between two sites.


Internet Protocol Virtual Private Network


Internetwork Packet Exchange
A networking protocol from Novell that interconnects networks that use Novell's NetWare clients and servers.


Integrated Services Digital Network
 - ISDN is a dial up digital public network for voice and data communications with charges based on line rental and usage. ISDN provides a number of advanced telephony services, such as CLI and DDI, which form the basis of today's advanced telephony applications. It is available in two forms: Basic Rate ISDN2e (2 channels) and Primary Rate ISDN30e (30 channels).


Provision of up to 30 exchange lines on fibre optic cable allowing connection of DDI, CLI etc.


International Organisation for Standardisation.


Internet Service Provider - 
Allows you to connect to the Internet.


Interactive Voice Response - IVR systems automate routine transactions, such as requests for literature or information by using voice recognition or phone keypad operations.