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448 GLOSSARY
STP Shielded Twisted Pair. A twisted pair of wires surrounded by a shield that
is typically made of braided wire or metal foil.
switched Ethernet An Ethernet network that allows each user the full Ethernet bandwidth of
10 Mbit/s to another node.
system-wide
greetings
A special type of time-dependent greeting that is used throughout the
system.
T1/E1 A high-speed data channel that can handle 24 voice or data channels (T1)
or 30 voice or data channels (E1) at 64Kbit/s. Refers to the U.S. T1 line or
European E1 equivalent.
T3 A U.S. standard for high-speed data transmission at 44.736 Mbit/s,
providing the equivalent bandwidth of 28 T-1 circuits. The carrier channel
can handle 672 voice or data channels.
TAPI Telephony Applications Programming Interface
A Microsoft Windows standard interface for integration between
telephone systems and Windows-based software. A typical example is
integrating Caller ID with a database on your computer that contains
detailed information about potential callers. When your telephone rings,
a window pops up on your computer with information about the caller.
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.
token ring A communications protocol in which a special data packet, called a
token, is passed from node to node on the network ring. Only the
terminal or workstation that currently has the token can transmit data.
toll-free The U.S. term for “free phone.”
toll restrictions The U.S. term for “call barring.”