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216 Meridian Digital Telephone IP Adapter Installation and Administration Guide
Glossary Standard 1.1
trunk access digits
Trunk access digits are numbers that are used by the remote unit to determine the
trunk to use when routing a call. For example, 9 is a common trunk access digit
used to obtain an outside line.
trunk groups
A trunk group consists of one or more trunk lines that are logically grouped. You
can configure up to eight trunk groups on the Remote Office 9150 unit.
U
uninterruptible power supply
A power supply that includes a battery to maintain power in the event of a power
outage. Typically, a UPS keeps a computer running for several minutes after a
power outage, enabling you to save data that is in RAM and to shut down the
computer safely.
UPS
See uninterruptible power supply.
utility
A program that performs a specific task, usually related to managing system
resources. Operating systems contain a number of utilities for managing disk
drives, printers, and other devices.
V
V.35
An ITU-T standard describing a synchronous, physical layer protocol used for
communications between a network access device and a packet network. V.35 is
most commonly used in the United States and in Europe, and is recommended
for speeds up to 48 Kbps. In practice, V.35 is used for synchronous transmission
up to 2.048 Mbps.
V.35 interface
A Frame Relay network technology used to carry the voice conversation and
telephone set control signals over:
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a Frame Relay Access Device to send the voice and signal packets to the
Remote Office 9150 unit via a Frame Relay Network