| 摘要 |
PROBLEM TO BE SOLVED: To prevent unreserved ringing of a ringer on the occurrence of an incoming call in a house at midnight, a restaurant, a cinema hall, or a concert hall. SOLUTION: The base station (master set 10) is provided with a call mode command setting means 16 to set a call mode of a mobile station (slave set 20), and the use of other call reception notice means than a ringer is designated by using a call service class bit of an incoming call message in matching with the environmental condition on the occurrence of an incoming call. A call mode selection means 23 of the mobile station (slave set 20) selects automatically a call means for the user according to the designation of the call service class bit automatically. |
