Business telecommunications and IT systems

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Phone and IT products

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Telephony and IT terms

There are 1522 entries in this glossary.

0-9 All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Term	Definition
ISDN	Integrated Services Digital Network. Originally defined by the CCITT as ‘a network evolved from the telephony IDN that provides end-to-end digital connectivity to support a wide range of services, including voice and non-voice services, to which users have access by a limited set of standard multipurpose customer interfaces'. Pulse Code Modulation is used to convert analogue signals to digital which formed the basis of ISDN.

Term

Definition

ISDN

Integrated Services Digital Network.

Originally defined by the CCITT as ‘a network evolved from the telephony IDN that provides end-to-end digital connectivity to support a wide range of services, including voice and non-voice services, to which users have access by a limited set of standard multipurpose customer interfaces'.

Pulse Code Modulation is used to convert analogue signals to digital which formed the basis of ISDN.

Further information

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