Siemens Gigaset A580 User Manual page 175

Glossary
D
DHCP
Dynamic Host Configuration Protocol
Internet protocol which regulates the automatic assignment of
Network
server. A DHCP server can, for example, be a router.
The phone contains a DHCP client. A router that contains a DHCP server can
assign the IP addresses for the phone automatically from a defined address
block. The dynamic assignment means that several
share one IP address, although they can only use it alternately and not simulta-
neously.
With some routers you can specify that the IP address for the phone is never
changed.
Displayed name
VoIP provider feature. You can specify any name that is to be shown to the
other party during a call instead of your phone number.
DMZ (Demilitarized Zone)
DMZ describes a part of a network that is outside the firewall.
A DMZ is set up, as it were, between a network you want to protect (e.g. a LAN)
and a non-secure network (e.g. the Internet). A DMZ permits unrestricted
access from the Internet to only one or a few network components, while the
other network components remain secure behind the firewall.
DNS
Domain Name System
Hierarchical system that enables assignment of
names that are easier to memorize. This assignment must be managed in each
(W)LAN from a local DNS server. The local DNS server determines the IP
address, if necessary by enquiring about superordinate DNS servers and other
local DNS servers on the Internet.
You can specify the IP address of the primary/secondary DNS server.
£
DynDNS.
Domain name
Name of one (several) Web server(s) on the Internet (e.g. gigaset.net).
The domain name is assigned to the relevant IP address by DNS.
DSCP
Differentiated Service Code Point
£
Quality of Service
DSL
Digital Subscriber Line
Data transfer technology that allows Internet access with, for e.g. 1.5
over a conventional telephone line. Prerequisites: DSL modem and the appro-
priate service offered by the Internet provider.
DSLAM
Digital Subscriber Line Access Multiplexer
The DSLAM is a switch cabinet in an exchange at which all subscriber connec-
tors converge.
174
subscribers. The protocol is made available in the network by a
(QoS).
IP addresses
Network subscribers
IP addresses to Domain
to
can
Mbps