3Com NBX 100 Administrator's Manual page 452

452 G
LOSSARY
data compression
delayed ringing
delayed ringing
pattern
demand priority
access
DHCP
DID/DDI
direct mail transfer
domain
DSP
DSU/CSU
CTI Computer Telephony Integration. A generic name for the technology that
connects computers and telephone systems through software
applications.
D
A method of reducing the amount of data to be transmitted by reducing
the number of bits needed to represent the information.
Prevents a telephone on a shared line from ringing until the incoming call
has rung on other telephones a set number of times.
The definition for the order in which telephones ring and how many
times each telephone rings.
A method for supporting time-sensitive applications such as video and
multimedia as part of the proposed 100BASE-VG standard offering
l00Mbit/s over voice-grade UTP cable.
Dynamic Host Configuration Protocol. A method by which devices are
assigned temporary, renewable IP addresses by a server when the devices
become active on the network.
Direct Inward Dial/Direct Dialing Inward. A feature that allows outside
calls to reach an internal extension without going to an operator or
Automated Attendant.
Transfers a caller directly to another user's voice mail without requiring
them to wait through ringing and without interrupting the recipient.
A group of nodes on a network that form an administrative entity. A
domain can also be a number of servers that are grouped and named to
simplify network administration and security.
Digital Signal Processor. A special-purpose CPU tailored to handle
complex mathematical functions. A DSP takes an analog signal and
reduces it to numbers so its components can be isolated, sampled, and
rearranged more easily than in analog form.
Digital (or Data) Service Unit/Channel Service Unit. A pair of
communications devices that connect an in-house line to an external
digital circuit (such as T1 and DDS). It is similar to a modem, but connects
a digital circuit rather than an analog circuit.