COMfortel 1400 IP/2600 IP/3600 IP - Firmware V2.8 - Advanced Information - V02 06/2017
655
Glossary
Glossary
Certain ranges are reserved for the operation of local networks:
•
Class A: 10.x.x.x (for networks with up to 16.5 million PCs)
•
Class B: 172.16.x.x to 172.31.x.x (for networks with up to 65534 PCs)
•
Class C: 192.168.0.x to 192.168.255.x (for networks with up to 254
PCs)
These addresses have no validity on the Internet; this means that data
packets with this sender type or recipient address cannot be transported on
the Internet. However, they can be used in local networks without restriction.
The advantage of this is that if data from a local network configured in this
way comes in contact with the Internet, none of the data on the computers
in the local network can leak out or be accessed externally.
ISDN
Integrated Services Digital Network) - digital network that combines the
different communication services, e. g. telephony, telefax groups 2 and 3,
data transmission, etc. Unlike analogue networks, ISDN uses digital trans-
mission.
J
Jitter Buffer
Buffers RTP packages, to compensate irregular transfer rates of the
Internet.
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