Portable telephone system having selectable bypass line

Details Portable telephone system having selectable bypass line Portable telephone system having selectable bypass line

H - Electricity

04

M

H04M 7/16 (2006.01) H04M 1/00 (2006.01) H04Q 7/22 (2006.01)

Patent

CA 2066393

A portable telephone system includes a first telephone network including a terminal station, a first telephone set connected to the first telephone network via the terminal station, a second telephone network including a communication center which is connected to the first telephone network at a connection point, and at least one second telephone set registered in the communication center and connected to the first telephone network via the terminal station. The second telephone set is a portable telephone set made up of a base station part and a portable station. The communication center includes a first part for sending a line hold signal to the first telephone set via the first telephone network when a call to the portable station of the second telephone set is received via the first telephone network, and a second part for sending control information to the base station part of the second telephone set, where the control information includes a notification that a call is made to the portable station of the second telephone set from the first telephone set and a telephone number of the first telephone set. The base station part of the second telephone set includes a third part for dialing the telephone number of the first telephone set in response to the control information received from the communication center, so that a service after the third means dials the telephone number of the first telephone set is made between the first and second telephone sets via the terminal station of the first telephone network.

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