3Com NBX 100 Administrator's Manual - page 464
464
G
LOSSARY
TCP/IP
Transmission Control Protocol/Internet Protocol. The suite of protocols
that define how to move information over the Internet.
thin Ethernet
An 802.3 LAN that uses smaller than normal diameter
coaxial cable
; often
used to link PCs together. Also known as
10BASE2
.
time-dependent
greeting
Greetings that usually indicate the time of day that the caller is calling
(morning, afternoon, evening) and are an optional feature of the
Automated Attendant.
toll-free
The U.S. term for “free phone.”
toll restrictions
The U.S. term for “call barring.”
translation
The process of interpreting or modifying dialed digits for incoming or
outgoing calls and allows the call to progress through the network.
trunk
A communications channel between two points. It often refers to
large-bandwidth telephone channels between major switching centers,
capable of transmitting many simultaneous voice and data signals.
twisted pair
Two insulated wires twisted together with the twists varied in length to
reduce potential signal interference between the pairs. Twisted pair is the
most common medium for connecting telephones, computers and
terminals.
U
UPS
Uninterruptible Power Supply. A secondary power source attached to a
piece of hardware, for example a server, which provides backup power
for conducting an orderly shutdown if the server’s normal power supply
fails.
UTP
Unshielded Twisted Pair. Two insulated wires twisted together with the
twists varied in length to reduce potential signal interference between the
pairs. The standard cabling used for telephone lines and Ethernet
10BASE-T.
V
virtual LAN
A logical, rather than a physical, LAN that includes workgroups drawn
together for business reasons or for a particular project regardless of the
location of the members.