| 摘要 |
PURPOSE:To improve the speech quality by enabling a speaker to indicate line switching on demand even after selection of each base station. CONSTITUTION:When the speaker inputs a specific number from a telephone set 10 by dialing during speaking on the telephone set 10 after a line is fixed, this dial signal is detected by a signal reception control oscillating part 11, and a signal is sent from the oscillating part of the oscillating part 11 to base stations 21 to 2n through approach lines 51 to 5n. When signal control parts 121 to 12n of base stations 21 to 2n receive this signal, switches 131 to 13n are switched to permit sending of outputs of reception input converting parts 41 to 4n to a control station 6. When this signal is received by a reception input comparison control part 7, a channel switching part 8 is controlled to perform line switching if there is a line of high reception input. Thus, the speech quality is improved. |
