ISDN glossary
ISDN glossary
The ISDN glossary should help you understand the many new terms and abbreviations relating to ISDN.
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
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 Completion of Calls to Busy Subscriber and means that a busy subscriber will be automatically called back as soon as he/she finishes his/her call.
CCITT Abbreviation for Comité Consultatif International Telégraphique et Télé- 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 Call Forwarding Unconditional and means that call forwarding is possible for all incoming calls.
CLIP ISDN service. Abbreviation for Calling Line Identification Presentation and means that the calling party’s number appears on the called party’s display.
CLIR ISDN service. Abbreviation for Calling Line Identification Restriction and means that the calling party’s number is suppressed on the calling party’s display.
COLR ISDN service. Abbreviation for Connected Line Identification Restriction and means that the called party’s number is suppressed on the calling party’s display.
COLP ISDN service. Abbreviation for Connected Line Identification Presentation and means that the called party’s number appears on the calling party’s display.
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