Subscriber apparatus

H - Electricity – 04 – M

Patent

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Details

H04M 3/02 (2006.01) H04M 3/12 (2006.01) H04M 19/02 (2006.01) H04M 3/36 (2006.01)

Patent

CA 2067884

A subscriber apparatus having working ringer generators and a standby ringer generator which is alternately used when there is a fault, wherein provision is made of a traffic monitoring unit which continuously monitors the traffic of calls terminating at the subscriber lines and a ringer switching unit which switches a working ringer generator to a standby ringer generator when it is judged that the number of the terminating calls exceeds an allowable number, whereby the apparent capacity of the working ringer generators is increased.

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