Patent ID: 6952588
Filing Date: 2005-10-04
Classification: H04M

Abstract:
1. A radio telephone system, in which a slave telephone set is connected to a public telephone network through radio communication with a master telephone set, wherein: a line adopted to provide a plurality of independent communications is connected to the public telephone network side of the master telephone set; the slave telephone set connecting a plurality of telephone sets; a plurality of unit IDs are registered in the slave telephone set, and said plurality of unit IDs are also registered in the master telephone set, the slave telephone set independently communicating over a plurality of channels via the master telephone set with the public telephone network, and when a communication request is issued from a telephone set from said plurality of telephone sets during communication with the master telephone set via the radio communication channel using one unit ID, the slave telephone set establishes a communication with the public telephone network by concurrently connecting the master telephone set via the radio communication channel using another unit ID.