Siemens Gigaset A580IP Manual page 176

DTMF
Dual Tone Multi-Frequency
Another description for dual tone multi-frequency dialing (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.
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Static IP address
DynDNS
Dynamic DNS
Domain names and IP addresses are assigned via DNS. For
this service is enhanced with "DynamicDNS". This permits the use of a network com-
ponent with a dynamic IP address as a
a service can always be addressed on the Internet at the same
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 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 customized
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 unauthorized 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).
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NAT.
Firmware Software for a device in which basic information is stored for the device's function.
To correct errors or update the device software, a new version of the firmware can
be loaded into the device's memory (firmware update).
Flat rate Billing system for an
monthly fee. There are no additional charges for the duration of the connection or
number of connections.
Fragmentation
Data packets that are too big are split into smaller packets (fragments) before they
are transferred. They are put together again when they reach the recipient (defrag-
mented).
Server
Internet connection. The Internet provider charges a set
Dynamic IP addresses
on the Internet. DynDNS ensures that
Domain
Glossary
name,
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