Glossary / 123
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Modular ICS 5.0 Companion Installer Guide
They are referred to by line numbers
in the same way as physical lines.
Transfer: A feature that lets you
redirect a call to another telephone
in your Norstar system, over a
network or outside your Norstar
system. It also works with a Norstar
Companion portable.
Trunk Module: A module that
allows you to install additional Trunk
Cartridges in your system to provide
up to 12 additional trunks.
Twinning: With the XC 2.0 system,
the ability of users who have both a
wireline (desk) telephone and
Companion portable telephone to
answer calls from either device.
Twinning is made possible either
through assigning Answer DNs or
configuring target lines.
U
Undirected Receive Signal
Strength Indicator:
A measurement of the signal
strength between a portable and the
base station radio that the portable
is currently linked to.
See also Receive Signal Strength
Indicator.
UTAM Activation Key (U.S. only):
Activates the wireless capability on a
new system and in system upgrades
involving a change to the number of
base stations supported.
UTAM Inc. (U.S. only): The Federal
Communications Commission
(FCC) has appointed UTAM Inc. as
the body responsible for
coordinating and verifying the
installation or relocation of personal
wireless communication devices
operating between 1.92 GHz and
1.93 GHz. This allows UTAM Inc. to
monitor and control the level of
wireless activity within this band for
a specified geographical location.
UTAM Recovery Key (U.S. only):
Reactivates a Companion wireless
system that has been disabled and
restores the Companion system to
its previous radio credit capacity.
See the troubleshooting chapter.
W
wireless: See Companion.
