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Data-only communications network confined to a limited geographic area, with moderate to
high data rates. See also WAN.
Media Access Control (MAC) Address
A layer 2 address, 6 bytes long, associated with a particular network device; used to identify
devices in a network; also called hardware or physical address.
Network
A group of computers, terminals, and other devices and the hardware and software that
enable them to exchange data and share resources over short or long distances. A network
can consist of any combination of local area networks (LAN) or wide area networks (WAN).
Private Branch Exchange (PBX)
A small to medium sized telephone system and switch that provides communications
between onsite telephones and exterior communications networks.
Protocol
A formal set of rules developed by international standards bodies, LAN equipment vendors,
or groups governing the format, control, and timing of network communications. A set of
conventions dealing with transmissions between two systems. Typically defines how to
implement a group of services in one or two layers of the OSI reference model. Protocols can
describe low-level details of machine-to-machine interfaces or high-level exchanges between
allocation programs.
Public Switched Telephone Network (PSTN)
The local telephone company network that carries voice data over analog telephone lines.
Router
A specialized switching device which allows customers to link different geographically
dispersed local area networks and computer systems. This is achieved even though it
encompasses different types of traffic under different protocols, creating a single, more
efficient, enterprise-wide network.
Switched Circuit Network (SCN)
A communication network, such as the public switched telephone network (PSTN), in which
any user may be connected to any other user through the use of message, circuit, or packet
switching and control devices.
Server
A computer or device on a network that works in conjunction with a client to perform some
operation.
Session Initiation Protocol (SIP)
A protocol for transporting call setup, routing, authentication, and other feature messages to
endpoints within the IP domain, whether those messages originate from outside the IP cloud
over SCN resources or within the cloud.
© 2014 Aastra Sweden | 154_1531 ANF 901| A | 2014-05-15
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TA7104i Hardware Installation
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