AltiGen IP 805 - Manual (Page 35)

IP 805 User Manual 31
Glossary
D
DHCP (Dynamic Host Configuration Protocol) - a protocol that lets network administrators manage centrally
and automate the assignment of Internet Protocol (IP) addresses in an organization’s network.
DNS - Domain name system used to address translation to convert H.323 IDs, URLs, or e-mail IDs to IP
addresses. DNS is also used to assist in locating remote gatekeepers and to reverse-map raw IP addresses
to host names of administrative domains.
Do Not Disturb (DND) - when this feature is selected, all incoming calls to the user’s extension are denied. If
the station has system forwarding instructions, the calls will be automatically redirected to another extension,
Attendant, or operator.
Dynamic IP Address - An IP address that is automatically assigned to a client station in a TCP/IP network,
typically by a DHCP server. Network devices that serve multiple uses, such as server and printers, are usually
assigned static IP addresses.
E
extension number - a number that matches a station to a particular user.
F
Firewall - a set of related programs, located at a network gateway server, that protects the resources of a
network from users of other networks.
FLASH - a sudden brief signal. Activated by pressing the Flash button, or by a quick press and release of the
receiver button (switch hook).
H
H.323 - An International Telecommunications Union (ITU-T) standard that describes packet-based video,
audio and data conferencing.
http or HTTP - Hypertext Transfer Protocol. The Internet protocol used to manage communications between
Web clients (browsers) and servers.
I
IP Address - a 32-binary digit number that identifies each sender or receiver of information that is sent in
packets across the Internet.
J
jack - the mate for a plug. Used to connect two pieces of equipment together.
L
Local address - an address used in a peripheral node or station in place of a network address and transformed
to or from a network address for delivery purposes.
M
MHz - Megahertz.
ms - millisecond.