| 摘要 |
Telephone communication system comprising a public telephone 1 provided with a handset 2 and a connector 4 for connection to a portable communication device 8 provided with electroacoustic and acoustoelectric transducer means 12, 14, 16. The telephone 1 is provided with a switching unit 26 which, when the portable device 8 has been connected to the telephone 1, disables the handset and enables the portable communication device. Figure 4. <IMAGE> |
