MOCET IP3072 - Manual (Page 73)

Page 73 Page 73
MOCET IP3072 Smart Office IP Desk Phone User Guide
8.2 Terminology
10/100BASE-T
It is a LAN transmission line specification stipulated by IEEE.
Transmission speed is 10 or 100 Mbps and the modulation
technique is base-band modulation. The cable uses unshielded
twisted pair, similar to a telephone wire. 10BaseT is an IEEE
standard (802.3) for operating 10 Mbps Ethernet networks (LANs)
with twisted pair cabling and a wiring hub.
802.1p An IEEE standard for providing QoS using three bits (defined in
802.1q) to allow switches to reorder packets based on priority
level.
802.1q An IEEE standard for providing virtual LAN (VLAN) identification
and QoS levels. Three bits are used to allow eight priority levels,
and 12 bits are used to identify up to 4,096 VLANs.
AGC Automatic Gain Control is a feature of IP solutions units that
allows the units to automatically adjust the incoming voice signal
to a user defined level in dBm.
A-law The PCM coding and compression standard used in Europe and
in areas outside of North America influence. A Law Encoding is
the method of encoding sampled audio waveforms used in
2.048Mbps, 30 channel PCM primary system known as E-carrier.
Auto answer In telephone call control: The capability of a machine to answer a
ringing telephone without human intervention.
Autodial In telephone call control: An auxiliary device for a telephone that
automatically dials any of a group of prerecorded telephone
numbers.
Blocked Calls Caused by an insufficient network facility that does not have
enough lines to allow calls to reach a given destination. May also
pertain to a call from an originating number that is blocked by the
receiving telephone number.
Call Completion The point at which a dialed number is answered.
Call Termination The point at which a call is disconnected.
CDR In telephone call control: Call Detail Record for billing
IP Centrex
This service is offered by the LEC to the end user. The feature-
rich Centrex line offers the same features and benefits as a PBX
to a customer without the capital investment or maintenance
charges. The LEC charges a monthly fee to the customer, who
must agree to sign a term agreement. And the abive service is
thru VoIP called IP centrex.
CO Switching center for the local exchange carrier.