Gigaset A580 IP User Manual page 177

Glossary
DSCP
Differentiated Service Code Point
£
Quality of Service
DSL
Digital Subscriber Line
Data transfer technology that allows Internet access with, for e.g.
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.
DTMF
Dual Tone Multi-Frequency
Another description for dual tone multi-frequency dialling (DTMF).
Dynamic IP address
A dynamic IP address is assigned to a network component automatically via DHCP.
The dynamic IP address for a network component can change every time it regis-
ters or at certain time intervals.
£
Static IP address
DynDNS
Dynamic DNS
Domain names and IP addresses are assigned via DNS. For
this service is enhanced with "Dynamic DNS". This permits the use of a network
component with a dynamic IP address as a
that a service can always be addressed on the Internet under the same
names irrespective of the current IP address.
E
ECT
Explicit Call Transfer
Participant A calls participant B. The participant puts the connection on hold and
calls participant C. Rather than connect everyone in a three-party conference, A
now transfers participant B to C and hangs up.
EEPROM
Electrically Erasable Programmable Read Only Memory
Memory building block in your phone with fixed data (e.g. default and customised
settings) and data saved automatically (e.g. entries to the list of callers).
Ethernet network
Wired LAN.
F
Firewall You can use a firewall to protect your network against unauthorised external
access. This involves combining various measures and technologies (hard and/or
software) to control the flow of data between a private network you wish to protect
and an unprotected network (e.g. the Internet).
£
NAT.
176
(QoS).
Server
1.5 Mbps
Dynamic IP addresses
on the Internet. DynDNS ensures
over a
Domain