Discriminative metering

Full Title

Arrangements for metering, time-control or time indication > Metering calls from calling party > Discriminative metering

Child Classifications

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• H04M 15/14 according to class of calling party
• H04M 15/16 according to connection obtained
• H04M 15/18 according to duration of the call
• H04M 15/22 according to time of day
• H04M 15/24 preventing metering of tax-free calls to certain lines, e.g. to fire or ambulance stations