Wholesaler of internet bandwidth to ISPs. See ISPs (Internet Service Providers).

Non-profit organisation which is the worldwide central body for administration of IP addresses and domain names used on the internet.

Connection of a call to an international destination number without the aid of an operator. IDD is still in common use because it is used to quote international calling rates. IDD can be done from fixed lines or from mobiles. Not to be confused with international roaming calls, see below.

Global standards for 3G mobile network performance, from the ITU (International Telecommunications Union).

Alternately called an in-place number or an in-place line. The service may be reconnected without a technician site visit. A service is in-place if there has been a previous connection at the address and the line remains in-place. A phone line with a dial tone is an in-place service, and in some cases a line without a dial tone may be considered in-place.

The cost of calls, messages and other uses which the minimum monthly cost allows. May apply to mobiles or to landline phone services. Most often, the included calls match the minimum monthly spend. Included calls may be measured in minutes or in dollar value.

Infrared is similar to Bluetooth in that it`s another method of peer-to-peer networking. Here data is transmitted via radio waves across short distances from device to device. (The range data can be sent using infrared is shorter than with Bluetooth.) You could, for instance, send a text document to a colleague by bringing your notebooks close together and exchanging the data via each device`s infrared port.

The providers of coverage for some satellite phones. This satellite network provides coverage to 100% of Australia. Sat Phones are often kept for emergency use in remote areas.

Video, voice or data interaction over a communications channel. Inputs may be from either party.

NDD call between any of the Australian capital cities: Adelaide, Brisbane, Canberra, Darwin, Hobart, Melbourne, Perth, and Sydney.

Fee charged for routing a mobile phone call to a landline.

IP address of a computer on an intranet. Computers use IP addresses to identify one another. (Not to be confused with an External IP address.)

Calls that originate in one country and terminate in another. The call may be either operator assisted or direct dialled (eg. IDD calls). Applies to both mobile phones and to landlines.

Allows a mobile phone to be used overseas when a roaming agreement exists between the user`s Australian mobile phone company and a mobile phone company overseas. See also Roaming.

Process of routing a telecommunications connection between two countries through an intermediary country.

The global network of computer networks, which provides access to millions of resources. Information is transferred using the TCP/IP protocols. Simple user interfaces which

See VoIP

A private IP network. (Not to be confused with the internet.)

Protocol for data packet transfers. Forms the basis for most networks, including the internet. IP packets are data packets consisting of a header and attached data. Packets are often sent using a TCP (Transfer Control Protocol) to aid delivery. At the terminus of the data transmission, IP packets are reassembled into the original data form.

A numeric IP address, which often can be translated into a webpage address (External IP Address) or a computer`s address in an intranet (Internal IP Address). Computers use IP addresses as identifiers.

See VoIP

Non-visible part of the EMS (Electromagnetic Spectrum) which can be used as a wireless communications medium. Line-of-sight transmissions only.

Integrated services over a traditional telephone line. The line is altered at the exchange to provide either an ISDN2 or ISDN10/20/30 connection. ISDN2, also called BRI, is a converted single copper pair into two 64 kbps `B` channels which may be used for voice or data. There is an additional 16kbps `D` data signal channel created also. ISDN2 can be used to provide 2 voice lines on the same copper pair. ISDN10/20/30, also called PRI, is a converted single copper pair (ordinary telephone line) into thirty 64 kbps `B` channels which may be used for voice or data. There is an additional 64kbps `D` data signal channel created also. ISDN10/20/30 can provide 10, 20 or 30 voice channels over the same copper line.

Company which retails internet connections to customers. An IAP (Internet Access Provider) wholesales bandwidth to ISPs, who in turn package and sell the bandwidth to the end customers. ISPs have also extended their range of products, often providing website hosting and other products.

Presentation of a phone bill on a call-by-call basis. Itemised calls show call information such as: number called from, date of call, time of call, number called, duration of the call, and the cost of the call. Often additional information is supplied, such as: rate plan applied to that call, whether the number dialled is considered OnNet, and others. Aussie Phone Brokers makes use of this information to recalculate each phone call according to a range of plans applied.