| 摘要 |
PROBLEM TO BE SOLVED: To prolong a waiting time equally to that of a single-line mobile terminal since the single-line mobile terminal does not comprise a key lamp, so that a battery is not consumed thereby but current consumption of a multi-line mobile terminal at the time of traffic congestion is increased, becomes four times approximately, for example, by lighting a plurality of key lamps, and battery consumption is large, so that the waiting time is reduced to 1/4, approximately. SOLUTION: A base power saving unit (10) is provided for exchanging, with a multi-line mobile terminal (MLP), the situation of using a plurality of telephone lines as power saving information when performing wireless communication with the multi-line mobile terminal via an access point (AP) connected to a private communication network (LAN) while accommodating a plurality of telephone lines (2) and in the multi-line mobile terminal, key lamps corresponding to the plurality of telephone lines, for displaying one idle line among the plurality of telephone lines so as to make it selectable are turned off in a non-communicating state according to the power saving information. COPYRIGHT: (C)2007,JPO&INPIT
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