| 摘要 |
To ascertain in a pseudo-incoming call sequence whether or not a fixed subscriber unit of a user is set to an operation condition to wait for an incoming call, when a pseudo-incoming call is transmitted from a pseudo-incoming call outputting unit of a base station managing apparatus to the fixed subscriber unit through a wireless base station and a radio communication path, the fixed subscriber unit outputs an incoming call response signal to the base station managing apparatus through the wireless base station. Therefore, the base station managing apparatus can recognize that the fixed subscriber unit is set to an operation condition. Thereafter, to prevent a telephone connected with the fixed subscriber unit outputting a ringer sound, in place of a ringer sound urging signal in an incoming call sequence, a sequence interrupting signal is output from an incoming call sequence interrupting unit of the base station managing apparatus to the fixed subscriber unit through the wireless base station. Therefore, the operation condition of the fixed subscriber unit can be recognized in the base station managing apparatus without bothering the user.
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