ISDN Basic Rate In-
terface
ISDN subscriber connection. The Basic Rate Interface consists of
two B channels and one D channel. In addition to the Basic Rate In-
terface, there is the Primary Rate Interface. The interface to the sub-
scriber is provided by an So bus.
ISDN card
Adapter for connecting a PC to the ISDN Basic Rate Interface. From
a technical perspective, we differentiate between active and passive
cards. Active ISDN cards have their own processor, which handles
communication operations independently of the PC processor and
therefore does not require any resources. A passive ISDN card, on
the other hand, uses the PC's resources.
ISDN Login
Function of your gateway. Your gateway can be configured and ad-
ministrated remotely using ISDN Login. ISDN Login operates on
gateways in the ex works state as soon they are connected to an
ISDN connection and therefore reachable via an extension number.
ISDN number
The network address of the ISDN interface, e.g. 4711.
ISDN router
A router that does not have network connections but provides the
same functions between PC, ISDN and the Internet.
ISDN-BRI
ISDN Basic Rate Interface
ISDN-Dynamic
This performance feature requires the installation of the T-ISDN
Speedmanager. If you are surfing the Internet and use two B chan-
nels for downloading, you cannot be reached by telephone from out-
side. As a further call is signalled over the D channel, your PBX can,
depending on the setting, specifically shut down a B channel so that
you can take the call.
ISDN-Intern-
al/External
Alternative name for the So bus.
ISDN-PRI
ISDN Primary Rate Interface
ISO
International Standardization Organization
ISP
Internet Service Provider
ITU
International Telecommunication Union
Key Escrow
Stored keys can be viewed by the government. The US government,
in particular, requires key storages to prevent crimes being covered
up through data encryption.
LAN
Local Area Network
Glossary
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