Auerswald COMpact 3000 analog Installation, Operation And Configuration Instructions page 571

Glossary
Terminology and Functions
N
N
NAT
NAT (Network Address Translation) permits the mapping of a specific IP address used within a
network to another IP address used by another network. This function is e. g. performed by a
router which connects a local area network to the Internet.
Network
A network is a merger of more than one computer and other communication devices. This
enables multiple users to access common resources such as files, printers, etc.
NTP
As the time on a computer or on other devices in the network is only rarely precisely adjustable,
the NTP (Network Time Protocol) is used. This is a protocol that is used to synchronise the time
on a computer or on other devices in the network with other computers or with an external clock
via the Internet. An NTP server is selected to perform the time synchronisation. The time
provided by the NTP server is synchronised as exactly as possible to Coordinated Universal
Time (UTC).
If a local NTP server is available in a local network, it can be selected, or a public NTP server
from a public list on the Internet can be used.
Number Presentation
Number presentation enables the selection of the telephone number that is transmitted to the
person being called during an outgoing call (outgoing). At the same time, the telephone number
is selected that is transmitted back to the caller and displayed as the telephone number actually
reached during the call (incoming).
If no telephone number should be transmitted, number presentation can also be suppressed.
571
COMpact 3000 analog/ISDN/VoIP - Firmware Version 4.0 - Version of the Manual 03 02/11