Communication system with call charge information stored in...

Details Communication system with call charge information stored in... Communication system with call charge information stored in...

H - Electricity

04

M

H04M 15/30 (2006.01) H04M 15/00 (2006.01) H04M 15/28 (2006.01) H04M 17/00 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2102402

A communication system, such as a telepoint system, is provided comprising at least one base station (10), and at least one handset (11) having means for setting up a call over a radio channel with the base station and having means for receiving an over-the-air registration sequence from the base station and storing a number (TRD) in non-volatile memory (20) dependent on the over-the-air registration sequence. The base station has metering means (13) for metering charge units accrued during the call between the base station and the handset. Means (14) are provided at the base station for automatically generating a new over-the-air registration sequence to be sent to the handset in response to the metering means and transmitting (16) the new over-the- air registration sequence to the handset and replacing the number stored in non-volatile memory with a new number dependent on the new over-the-air registration sequence. The new number differs from the old number to reflect deduction of pre-paid charge units.

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