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GAP

General Access Protocol

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Gateway

A hardware or software set up that translates between two dissimilar protocols, for example AOL has a gateway that translates between its internal, proprietary eMail format and Internet eMail format. Another meaning is to describe any mechanism for providing access to another system.

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Gigabit Ethernet

A version of Ethernet operating at 1,000 Mbit/s over twisted-pair and optical fibre cabling.

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GIF

Graphics Interchange Format - 
One of the two most common file formats for graphic images on the World Wide Web.

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GPRS

General Packet Radio Service
 - A packet-based wireless communication service that promises data rates from 56 up to 114 Kbps and continuous connection to the Internet for mobile phone and computer users

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Group Ringing

A group of extensions is rung by dialling a number. The group may be set as a ring group, in which case all of the extensions ring at once, or it may be set as a Hunt Group, in which case the system will find a free extension in the group to take the call.