Mail composed and transmitted on a computer system or network. Email is technically merely text, but multimedia attachments often accompany it.

Designed to extend the PPP (Point to Point Protocol), the EAP incorporates traditional passwords, token keys, digital certificates and public-key authentications.

E-mail (electronic mail) is the exchange of computer-stored messages by telecommunication. Generally text messages, non-text files such as graphic images and sound files can be sent as attachments. E-mail was one of the first uses of the Internet and is still the most popular use. A large percentage of the total traffic over the Internet is e-mail. A popular protocol for sending e-mail is Simple Mail Transfer Protocol (SMTP) and a popular protocol for receiving it is POP3. Both Netscape and Microsoft include an e-mail utility with their Web browsers.

Telephone numbers for the Emergency Services: Police, Fire & Ambulance. These numbers are free to call and should only be used in situations which are life threatening or there is imminent risk to either property or the environment. Related: 000 - Emergency, 106 - Emergency for TTY, 112 - Emergency for Mobiles

Energy transfer in the form of electric and magnetic field fluctuations. These waves or particles propagate through space at the speed of light.

The process of encoding data. Data is often encrypted before it is transmitted over an unsecure medium, then decrypted at its destination using a process or key for that purpose.

The area serviced by a local phone exchange. These are often used when describing 1300, 13 or 1800 number call routing.

All CDMA phones have a unique Electronic Serial Number (ESN). When you activate the phone on the CDMA network, the ESN is linked to the CDMA service and phone number.

The unique hexadecimal serial number of a CDMA phone (and previously, analog mobile phones). The ESN is registered with a service provider as part of a mobile`s activation process. See also IMEI.

The amount charged by a service provider for the early termination of a contract. For Mobiles, this is usually the number of months remaining on the contract multiplied by the minimum monthly commitment of that contract. For Landlines, this is often the repayment of any previously granted bonuses and the payment of a nominated monthly amount multiplied by the remaining months of the contract period. Also called a Cancellation Fee, Contract Cancellation Fee, Contract Termination Charges, etc.

Ethernet is the most widely-installed local area network (LAN) protocol. Officially, Ethernet (at up to 10Mbps) and Fast Ethernet (at up to 100Mbps) are the two grades. Now the term Ethernet generally refers to Fast Ethernet, due to this being the prevalent type used. Ethernet is generally transferred using CAT-5 or CAT-5e cables (`the blue computer cables`), or over a wireless LAN link.

Premises for the switching equipment which allows for connection of calls. Switching occurs for local, STD, calls to mobiles and international calling. Also called, Telephone Exchange.

Special regional zone which allows for untimed local calls to neighboring zones and to a community service town various community services are accessed.

IP address of a computer on an external network - most commonly the internet. Computers use IP addresses to identify one another. Websites are held on servers, and are assigned a unique IP address. Mail servers also have a unique IP address. External IP addresses may also be called Public IP addresses.