ISDN glossary
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glossar.fm5
27.11.98
Profiset 30isdn engl.: A30853-X300-B107-1-7619
ISDN glossary
The ISDN glossary should help you understand the many new terms
and abbreviations relating to ISDN.
AOC-D
ISDN service. Abbreviation for
A
dvice
o
f
C
harge
D
uring Call and means
that the charge of the call is displayed during the call.
AOC-E
ISDN service. Abbreviation for
A
dvice
o
f
C
harge at the
E
nd of Call and
means that the charge of the call is displayed at the end of the call.
AOC-S
ISDN service. Abbreviation for
A
dvice
o
f
C
harge at the
S
tart of Call and
means that the charge of the call is displayed at the start of the call.
B channel
The basic channel with a maximum transmission speed of 64 kBit/s.
Basic rate access
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 channel
with 16 kBit/s.
Call forwarding
Forward calls to another station.
Call waiting (CW)
ISDN service. If the line is busy, a connection request is signalled
(acoustically or optically) by a call waiting signal.
CCBS
ISDN service. Abbreviation for
C
ompletion of
C
alls to
B
usy
S
ubscriber
and means that a busy subscriber will be automatically called back as
soon as he/she finishes his/her call.
CCITT
Abbreviation for
C
omité
C
onsultatif
I
nternational
T
elégraphique et
T
élé-
phonique which is an international consulting body for telegraphy. The
CCITT has changed over to the ITU. It publishes recommendations
which are frequently viewed as standard in the international telecom-
munications industry.
CFU
ISDN service. Abbreviation for
C
all
F
orwarding
U
nconditional and
means that call forwarding is possible for all incoming calls.
CLIP
ISDN service. Abbreviation for
C
alling
L
ine
I
dentification
P
resentation
and means that the calling party’s number appears on the called party’s
display.
CLIR
ISDN service. Abbreviation for
C
alling
L
ine
I
dentification
R
estriction and
means that the calling party’s number is suppressed on the calling
party’s display.
COLR
ISDN service. Abbreviation for
Co
nnected
L
ine Identification
R
estriction
and means that the called party’s number is suppressed on the calling
party’s display.
COLP
ISDN service. Abbreviation for
Co
nnected
L
ine Identification
P
resentation and means that the called party’s number appears on the
calling party’s display.
D-Kanal
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 access
with 64 kBit/s. It is required in particular for connection setup and clear-
down.