Specifications

A31003-D3000-M100-01-76A9, 02-2013
OpenScape Desk Phone IP, Phone Administration, Administrator Documentation 241
Glossary
Example Dial Plan
I
IP
Internet Protocol. A data-oriented network layer protocol used for transferring
data across a packet-switched internetwork. Within this network layer, reliability is
not guaranteed.
IP address
The unique address of a terminal device in the network. It consists of four number
blocks of 0 to 255 each, separated by a point.
J
Jitter
Latency fluctuations in the data transmission resulting in distorted sound.
L
LAN
Local Area Network. A computer network covering a local area, like an office, or
group of buildings.
Layer 2
2nd layer (Data Link Layer) of the 7-layer OSI model for describing data trans-
mission interfaces.
Layer 3
3rd layer (Network Layer) of the 7-layer OSI model for describing the data trans-
mission interfaces.
LCD
Liquid Crystal Display. Display of numbers, text or graphics with the help of liquid
crystal technology.
LDAP
Lightweight Directory Access Protocol. Simplified protocol for accessing
standardized directory systems, e.g., a company telephone directory.
LED
Light Emitting Diode. Cold light illumination in different colors at low power
consumption.
LLDP
Link Layer Discovery Protocol (IEEE Standard 802.1AB). Provides a solution for
the discovery of elements on a data network and how they are connected to each
other.
M