by electronic means

Introduced: January 2000

Last revised: January 2006

Full Title

Substation equipment, e.g. for use by subscribers > with means for preventing unauthorised or fraudulent calling > Preventing unauthorised calls from a telephone set > by electronic means

Classification Context

Section:: ELECTRICITY
Class:: ELECTRIC COMMUNICATION TECHNIQUE
Subclass:: TELEPHONIC COMMUNICATION

2 direct subcodes

Child Classifications

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H04M 1/673 the user being required to key in a code
H04M 1/675 the user being required to insert a coded card, e.g. a smart card carrying an integrated circuit chip