Carrier Access Network Device Axxius 800 Uživatelský manuál stáhnout pdf (Strana 551)

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Axxius 800 - Release 2.2 Glossary - 19

Glossary

V.90

V.90 The standard for full-duplex modems sending and receiving data across

phone lines at up to 56,600 bps, approved by the International

Telecommunication Union (ITU) in February, 1998.

VC MUX Virtual Channel Multiplexer.

Voice Over IP

(VoIP)

An emerging technology that is, voice delivered using the Internet

Protocol, is a term used in IP telephony for a set of facilities for managing

the delivery of voice information using the Internet Protocol (IP). In

general, this means sending voice information in digital form in discrete

packets rather than in the traditional circuit committed protocols of the

public switched telephone network (PSTN). A major advantage of VOIP

and Internet telephony is that it avoids the tolls charged by ordinary

telephone service.

Wide Area

Network

(WAN)

A private long distance network that uses leased lines to connect

computers or LANs. A wide area network is a linking of computers not

physically attached through conventional network connectivity. Usually

the WAN connection is a dedicated or high grade dial up phone link. It

is often done with T1 or T3 connections but can also be through satellite

or other technologies.

Wink A signal sent between two telecommunications devices as part of a

handshaking protocol. It is a momentary interruption in SF (Single

Frequency) tone, indicating that the distant Central Office (CO) is ready

to receive the digits that have just been dialed. In telephone switching

systems, a single supervisory pulse.

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