
168 Glossary
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IP server
On the Business Communications Manager, this is the server that registers IP telephones.
IP telephone
In this book, this term refers to any internet-based telephone that works with the Business
Communications Manager system. For this release, this includes the Nortel Networks IP
telephones, i2002, i2004 and i2050 Software Phone, as well as the Symbol NetVision sets
and NetVision data handsets. These telephones all interface to the Business
Communications Manager LAN or WAN card through an internet or intranet link
ITG
This is the internet telephony gateway protocol for the Meridian 1 to Business
Communications Manager IP trunk connections. VoIP trunks require compatible
configuration at both endpoints. The Business Communications Manager must be set to
recognize that the other end of the trunk is an M1-ITG system.
jitter buffer
This is the process of collecting and organizing data frames at the receiving end to provide
balanced voice quality.
kbit/s
kilobits per second. Thousands of bits per second.
keycodes
These are software codes that release feature applications on the Business
Communications Manager, such as VoIP trunks, IP telephony ports, and MCDN.
latency
The amount of time it takes for a discrete event to occur.
Mbit/s
Megabits per second. Millions of bits per second.
MCDN
This is a specific network protocol used on private networks between Business
Communications Manager systems or between Business Communications Manager
systems and Meridian systems. The protocol only works on PRI SL-1 lines and on VoIP
trunks. The protocol is activated with a keycode.
modem
Device that converts serial data from a transmitting terminal to an analog device for
transmission over a telephone channel. Another modem converts the signal to serial digital
Noise.
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