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International direct dialing

International direct dialing (IDD) or international subscriber dialling (ISD) is placing an international telephone call, dialed directly by a telephone subscriber, rather than by a telephone operator. Subscriber dialing of international calls typically requires an international call prefix (international dial-out code, international direct dial code…

International call prefix, Example & Overview

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International call prefix

Example

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International direct dialing

Nodes16
Edges15
Triples0
Avg. degree1.88
Density0.125
Components1

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Important terminology

international call prefix code country telephone number dialed dialing subscriber countries direct calls idd dialling australia 00 61 dial used

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