Isdn Glossary - Swisscom Pronto 32i Manual

20.5.99

ISDN glossary

basic rate access
B-channel
call forwarding
camp-on
D-channel
dual-tone multifre-
quency (DTMF)
Euro ISDN
multi-device connec-
KAP14.FM5
The ISDN glossary should help you understand the many
new terms and abbreviations relating to ISDN.
This is the ISDN basic rate access. It is the entry-level connection type
in ISDN and offers two B-channels with 64 kBit/s and a control chan-
nel with 16 kBit/s.
The basic channel with a maximum transmission speed of 64 kBit/s.
Forward calls to another station.
If the line is busy, a connection request is signalled (acoustically or op-
tically) by a camp-on signal.
CAPI Abbreviation for Common ISDN Application Programmable Interface.
CAPI is a standardised interface between the communication inter-
face and the protocol interface. Any ISDN application programs can
communicate with any ISDN adapter cards via the CAPI.
CCITT Abbreviation for Comité Consultatif International Télégraphique et
Téléphonique which is an international consulting body for telegraphy.
The CCITT has changed over to the ITU. It publishes recommenda-
tions which are frequently viewed as standard in the international tel-
ecommunications industry.
Control channel, also known as the data channel, which is provided in
the ISDN basic rate access with 16 kBit/s and in the primary rate ac-
cess with 64 kBit/s. It is required in particular for connection setup and
cleardown.
A signalling method whereby the information is transmitted to the
switching centre in the form of tones with various frequencies.
Uniform European ISDN standard introduced at the end of 1993,
which will completely replace the national ISDN protocols in the year
2000.
hold The "call hold" feature. The non-communicating state of the user put
on hold in the course of a consultation or toggle action.
ISDN Abbreviation for Integrated Service Digital Network. Service-integrat-
ing digital telecommunications network which integrates telecommu-
nications services such as telephone, telefax, data and image trans-
mission in a network.
LED Light emitting diode. An LED which flashes or lights up to indicate the
status ON of a device or key.
MSN Abbreviation for Multiple Subscriber Numbers; a multiple subscriber
number of the ISDN basic rate access in a multi-device connection.
A connection whereby a number of terminals can be operated simul-
tion taneously on an S
Pronto 32i, englisch: A30853-X300-F507-1-7619
bus in point-to-multipoint operation.
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ISDN glossary
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