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Glossary
Gigaset DE900 IP PRO / en / A31008-M2210-R101-3x-7619 / glossary.fm / 22.03.2011
Version 2, 27.05.2010
DSL
Digital Subscriber Line
Data transfer technology which allows Internet access over conventional phone lines.
Prerequisites: DSL modem and the appropriate service offered by the Internet pro-
vider.
DSLAM
Digital Subscriber Line Access Multiplexer
The DSLAM is a switch cabinet in an exchange at which all subscriber connectors con-
verge.
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 registers or at
certain time intervals.
See also: Fixed IP address.
DynDNS
Dynamic DNS
DNS is used to assign domain names and IP addresses. For dynamic IP addresses this
service is now enhanced with Dynamic DNS. This permits the use of a network compo-
nent with a dynamic IP address as a server on the Internet. DynDNS ensures that a
service can always be addressed on the Internet under the same domain name
regardless 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 trans-
fers 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., call list entries).
Encryption
Encryption protects confidential information against unauthorised access. With an encryption
system, data packets can be sent securely over a network.
Ethernet network
Wired LAN.
Ethernet uses a base band cable for data transmission with a transmission rate of 10 or
100 Mbps or 1 Gbps.
