| 摘要 |
PURPOSE:To provide a radio telephone set and a radio telephone system for suppressing the increase of valid outputs even when the number of calls is increased. CONSTITUTION:When performing tripartie speaking with two slave sets, a base unit CS extracts voice data (a) and (b) by fetching signals transmitted from the respective slave sets into a protocol formatter 17. These voice data (a) and (b) are decoded by voice decoders 15 and 16 and inputted to an additive amplifier 13 as voice signals (a) and (b). The additive amplifier 13 further inputs a received signal (c), among received signals from a line, from a central office line interface 11, adds the voice signals (a), (b) and (c) and outputs a voice signal (a+b+c) to a voice encoder 14. The voice signal (a+b+c) is encoded by the voice encoder 14 and outputted to the protocol formatter 17, and the protocol formatter 17 transmits these voice data (a+b+c) to the respective hand sets with one time slot. |
