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Telecommunications Terminology

Broadband - Broadband refers to data transmission where multiple sections of data are sent simultaneously to increase the effective rate of transmission.

Centrex – Central office exchange service, a type of PBX service where the telephone company owns and manages all the communications equipment necessary to implement the PBX and then sells various services to the company.

CPE - Customer Premises Equipment are telephone terminal devices such as handsets and PBXs located at the customer’s site. Customer owned unlike Centrex.

Dedicated Lines - A dedicated line is a telecommunications path between two points that is available 24 hours a day for the designated individual or company. It is not shared among multiple users.

Extensions – Internal telephone lines connecting to various locations inside an enterprise’s premises.

Ethernet- Ethernet is the most widely-installed local area network ( LAN) technology. An Ethernet LAN typically uses coaxial cable or special grades of twisted pair wires. Ethernet is also used in wireless LANs.

Gateway – A gateway is a network point that acts as an entrance to another network. On the Internet, a node or stopping point can be either a gateway node or a host (end-point) node. The computers of Internet users and the computers that serve pages to users are host nodes. The computers that control traffic within your company's network or at your local Internet service provider (ISP) are gateway nodes.

ISP - ISP stands for Internet Service Provider. An ISP provides access to the Internet for others via some connectivity service(s). This might be in the form of dial up services, web hosting services or the combination of both.

Local Area Network- A Local data network used to interconnect computer equipment that share a common communications line or wireless link and typically share the resources of a single processor or server within a small geographic area.

Lines – Incoming Trunk or CO lines into an enterprise’s premises.

PBX – Sands for Private Branch exchange. It is a private telephone network used within an business where users share outside lines for making telephone calls external to the PBX.

PSTN – The Public Switched Telephone Network is the world's collection of interconnected voice-oriented public telephone networks, both commercial and government-owned. It's also referred to as the Plain Old Telephone Service (POTS)

RJ–11 – Registered Jack-11 is a telephone connector that holds up to four wires. The RJ-11 is the common connector used to plug the handset into the telephone and the telephone into the wall. A six-wire variation of RJ-11 is also used.

Telephone Service Provider – A Service provide supplies access to voice communication connectivity.

VoIP – Voice over Internet Protocol is the capability to carry normal telephony-style voice over an IP-based Internet with POTS-like functionality, reliability, and voice quality. VoIP enables a router to carry voice over an IP network.

VOIP Gateway – A VoIP trunk gateway is an interface that facilitates the use of plain old telephone service (POTS) equipment, such as conventional phone sets and fax machines, with a voice over IP (VoIP) network.

Wide Area Network – A Data Network used to interconnect a companies’ remote sited or widely dispersed computer equipment

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