Teldat bintec R3002 Manual page 583

Teldat GmbH
bintec Rxxx2/RTxxx2
via the standard access after a predefined number of attempts,
setup is attempted using the second entry then subsequent entries.
If the final entry in the list does not enable a connection to be set up
successfully, the operation is terminated until a new request is
made. When fall back occurs and all other ISPs can only be reached
by dialup connections, both B channels may be occupied. If channel
bundling is used, you cannot be reached for the duration of this con-
nection.
Fax Abbreviation of telefax.
FHSS, Frequency In a FHSS system, the frequency spread is achieved through con-
Hopping Spread stantly changing frequencies based on certain hopping patterns. In
Spectrum contrast to DSSS systems, hopping patterns are configured, not the
frequency. The frequency changes very frequently in one second.
File transfer Data transmission from one computer to another, e.g. based on the
Eurofile transfer standard.
Filter A filter comprises a number of criteria (e.g. protocol, port number,
source and destination address). These criteria can be used to se-
lect a packet from the traffic flow. Such a packet can then be
handled in a specific way. For this purpose, a certain action is asso-
ciated with the filter, which creates a filter rule.
Firewall Describes the whole range of mechanisms to protect the local net-
work against external access. Your gateway provides protection
mechanisms such as NAT, CLID, PAP/CHAP, access lists, etc.
Firmware Software code containing all a device's functions. This code is writ-
ten to a PROM (programmable read only memory) and is retained
there, even after the device is switched off. Firmware can be up-
dated by the user when a new software version is available
(firmware upgrade).
First-level domain Describes the last part of a name on the Internet. For
www.t-com.de, the first-level domain is de and in this case stands
for Germany.
Flash key The flash key on a telephone is the R button. R stands for
Rückfrage (inquiry). The key interrupts the line briefly to start certain
functions such as inquiries via the PBX.
Follow-me Performance feature of a PBX for diverting calls on the destination
telephone.
Glossary
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