H04M 17/00 - Definition fr

Definition statement

This subclass covers:

Prepayment telephone systems, for example prepayment telephone coin boxes;

Disposable prepaid sets;

Coin-freed or check freed systems;

Calling card specifications related to prepayment.

References relevant to classification in this subclass

This subclass does not cover:

Preventing unauthorized calling from a telephone set by inserting a coded card

H04M 1/675

Examples of places where the subject matter of this subclass is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Accounting or billing specially adapted for wireless communication networks

H04W 4/24

Usage measurements specially adapted for wireless communication networks

H04W 4/24

Informative references

Attention is drawn to the following places, which may be of interest for search:

Coin-freed or like apparatus in general

G07F

Mobile subscriber equipment

H04W 88/00

Charging arrangements in digital switching networks

H04L 12/14