| ADSL | An acronym for Asymmetric Digital Subscriber Line, ADSL is a method of transmitting data over traditional copper telephone lines at speeds higher than were previously possible. |
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| Anti-Virus | A computer virus is a program created specifically to invade computers and networks and cause damage. Anti-Virus programs can combat these programs and remove them off an infected computer. |
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| Authentication | The process of verifying a user's identity. It generally involves providing a unique username and password to identify oneself in order to gain access to something. |
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| Backbone | The part of a network that connects the systems and networks together. |
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| Bandwidth | The amount of data that can be sent from one computer to another through a particular connection in a certain amount of time. The more bandwidth available, the faster you are able to access information. Usually measured in bits or bytes-per-second. |
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| bits per second (bps) | A measurement of the number of bits of data that can be sent over the a network connection. When referring to modem speed bps indicates the measurement of the amount of data that a modem can transfer each second. |
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| Broadband | Is a type of data transmission in which a single medium (wire) can carry several channels at once including voice, data and video simultaneously. It is also a general term for different types of high-speed, high-bandwidth connections to the Internet, including Cable and ADSL. |
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| Browser | A browser or web browser is a software program that allows you to view pages on the Internet. Two commonly used Web browsers are Netscape Navigator and Microsoft Internet Explorer. |
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| Call | Establishment of (or attempt to establish) a voice or data connection between two endpoints. |
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| Call Back | The call back feature does your redialling for you. It saves you keying in the number over and over again if the person you are trying to reach is engaged. |
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| Call Connection Fee | Call connection fee, is the set charge applied at the start of calls for the purposes of connection, irrespective of how long you stay connected for. |
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| Call Forwarding | A feature that automatically diverts all calls to a different number. (Can be a mobile or a land line number) |
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| Call Hold | Call hold temporarily puts a caller on hold while you attend to other things. |
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| Call Waiting | This is a feature when activated can be switched on and off on most handsets. It allows a second call to come through when you are already on the phone. You have the choice of whether or not to accept the call. |
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| Caller Line Identification (Caller ID) | This is a network feature that allows the telephone number of the calling party to be displayed on the screen of the receiver’s handset before it is answered, providing the caller does not have a silent number. |
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| Codec | Refers to the encoding or decoding of a signal. Codecs refer to the sampling speed at which your voice traffic travels through the Internet. |
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| Compression | Used in VoIP to reduce the size of data which is being sent over the internet to maximize the quality of call. |
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| Conference Call | This enables three or more people to participate in a single telephone call. |
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| Cookies | Small text files installed on your computer when you browse certain web sites. Cookies are used to store information about a user's browsing activity, and are often used by sites that allow users to "personalise" their service. |
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| Database | A database is a structured format for organizing and maintaining information that can be easily retrieved. A simple example of a database is a table or a spreadsheet. |
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| Dial Plan | A description of the dialing arrangements for customer use on a network. |
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| Dial-up | The name given to the type of Internet connection established when a user's modem dials into an Internet Service Provider's point-of-presence. These are generally temporary connections. |
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| Direct Inward Dial (DID) | Allows a user who isn’t using your VoIP company or not using VoIP at all to call your VoIP phone. |
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| Domain Name | The domain name is the unique name that identifies an Internet site. An example of this would be www.sacotech.com.au |
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| Domain Name System (DNS) | A database system which stores both the domain name and IP addresses of Internet computers. When you specify a domain name in your browser, it will access a DNS database to find the corresponding IP address then establish a connection to the site. |
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