MOCET IP3072 - Manual (Page 75)

Page 75 Page 75
MOCET IP3072 Smart Office IP Desk Phone User Guide
DSP Digital Signal Processors (DSP) standardize the different states of
a digital signal into an organized and understandable signal. DSP
circuits can differentiate between digital signals and digital noise.
Signal-to-Noise ratio is one of the most important factors in
telephony voice communication because if there is too much noise
in a signal, the DSP will be unable to find a signal standard and
lose it. DSP circuits always adjust digital signal levels so the can
maintain a standard without noise.
DTMF Dual Tone Multi-Frequency: The type of audio signals generated
when you press the buttons on a touch-tone telephone. Can be
used in inbound(after voice channel connected) and
outbound(before voice channel connected) application.
Ethernet International standard networking technology for wired
implementations. Basic 10BaseT networks offer a bandwidth of
about 10 Mbps. Fast Ethernet (100 Mbps) and Gigabit Ethernet
(1000 Mbps) are becoming popular.
G.711 64 kbps PCM half-duplex codec (high quality, high bandwidth,
minimum processor load)
G.723.1 6.4/5.3 kbps MP-MLQ codec (low quality, low bandwidth, high
processor load due to the compression)
G.726 40/32/24/16 ADPCM codec (good quality, medium bandwidth, low
processor load)
G.729 8 kbps ACELP codec (medium quality, low bandwidth, high
processor load)
IEEE Institute of Electrical and Electronics Engineers, New York,
www.ieee.org. A membership organization that includes
engineers, scientists and students in electronics and allied fields.
It has more than 300,000 members. The IEEE is an international
organization that develops standards for hundreds of electronic
and electrical technologies for computers and communications.
The organization uses a series of numbers, like the Dewey
Decimal system in libraries, to differentiate between the various
technology families.
IP (Internet
Protocol) Internet Protocol is located at 3rd layer of ISO network model. A
set of rules used to send and receive messages at the Internet
address level. IP protocol is widely used in Internet and LAN
networks. The purpose is to deliver data between computing
equipment over the network. The protocol is generally effective
but does not guarantee complete and accurate data
communications.
IP address A 32-bit number that identifies each sender or receiver of
information that is sent across the Internet. An IP address has two
parts: an identifier of a particular network on the Internet and an
identifier of the particular device (which can be a server or a
workstation) within that network. A number used to identify the
location of a host device. It is expressed in numeric dot notation
(e.g. 202.203.27.31).