| 摘要 |
PURPOSE:To provide the voice unidirectional simultaneous call system for a cordless telephone set in which the voice unidirectional simultaneous call is implemented from an optional slave set by having only to provide one radio unit to a master set. CONSTITUTION:A radio link is formed between a master set 100 and an optional slave set 200 making a call based on the calling from the slave set 200 among plural slave sets 200,300,400, the radio link is once interrupted by a signal from the master set 100, then the calling slave set 200 is used for a representative slave set to form the radio link between the master set 100 and the representative slave set 200, the other slave sets 300,400 intercept a signal used for forming the radio link to enable the reception and the voice unidirectional simultaneous call is implemented from the representative slave set 200 to the other slave sets 300, 400 in a voice signal.
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