| 摘要 |
PURPOSE:To normally execute a simultaneous ringing, and to shorten a required time in a cordless key telephone system, in the incoming call control method of the cordless key telephone system. CONSTITUTION:In a cordless key telephone system 300 in which the incoming call to a telephone line 100 is simultaneously displayed on plural cordless telephone sets 200, a reserved line updating means 301 which monitors the reservation lapse time of a reserved speech channel 6s for each cordless telephone set 200 waiting a call setting, and [changes the selection priority order of the reserved speech channel 6s when the cordless telephone set 200 is divided into plural groups], and selects again the reserved speech channel 6s when the pertinent lapse time reaches a time decided [independently corresponding to each cordless telephone set 200], is provided corresponding to each slave device 3.
|
