ISDN Glossary

Calling Line Identification Restriction (CLIR)

Transfer of your own call number is disabled.

CCBS (Completion of calls to busy subscriber)

See Callback on busy.

CCNR (Completion of calls no reply)

See Callback on no reply.

CD (Call Deflection)

See Call deflection

CF (Call Forwarding)

See Call forwarding

Channel

An ISDN line, like an analogue telephone line, has two cables running into your house but a distinction is made in ISDN between the two logical user channels, known as the B-channels (which have nothing to do with the physical cables) and the control channel, known as the D-channel.

Charge display

See AOC-D and AOC-E.

CLIP (Calling Line Identification Presentation)

Subscriber A calls subscriber B. The call number of A appears on B's telephone display.

CLIR (Calling Line Identification Restriction)

The number of the calling line is not displayed.

COLP (Connected line identification presentation)

Subscriber A calls subscriber B. The call number of B is displayed on A's telephone. If B has programmed call forwarding or deflection to C, then the number dialed and the number transferred will not be the same; the call number of C will be displayed, provided C has not suppressed his number.

COLR (Connected line identification restriction)

The call number of C is not displayed on A's telephone if C has set up COLR.

Conference call

See Three-party conference.

CW (Call Waiting)

See Call waiting

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Siemens 4110 operating instructions Calling Line Identification Restriction Clir, Channel, Charge display, Conference call