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Glossary
Gigaset A580 IP / GBR / A31008-xxxx-xxxx-x-xxxx / glossary.fm / 24.03.2010
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DHCP
Dynamic Host Configuration Protocol
Internet protocol that handles the automatic assignment of
. The protocol is made available in the network by a 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
can share one IP
address, although they can only use it alternately and not simultaneously.
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 (Demilitarised 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 permits the assignment of
to
that are easier to memorise. This assignment has to be managed by a local DNS
server in each (W)LAN. 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.
£
Domain name
Name of one (of 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
£
DSL
Digital Subscriber Line
Data transfer technology that allows Internet access with, for e.g.
1.5
over a
conventional telephone line. Preconditions: DSL modem and the appropriate serv-
ice offered by the Internet provider.
DSLAM
Digital Subscriber Line Access Multiplexer
The DSLAM is a switch cabinet in an exchange at which all subscriber connectors
converge.
