Telephone tariff system - produces tariff pulses from stored control commands to eliminate effect of delays

摘要

The telephone system has time data stored in memories and specifying a time point lying within the selection time interval at which the selection of the affected memory should occur to form a tariff count pulse. A memory adds a time value to this time data which is stored assigned to a connection-specific switching device and specifies the wanted time spacing between two consecutive tariff count pulses. The memory stores the resulting sum. This sum is selected at a latter moment by the selection device. The advantage of storing these times lies in eliminating the effects of delays.