| 摘要 |
During the process, the interfacing unit (5) sends to the second telecommunication equipment (2), via a data transmission unit (3, 3a), a request whereby downloading of confidential data is requested. The second telecommunication equipment (2) sends in response, to the first telecommunication equipment (1), the confidential data, which are contained in the sound signal. The sound signal is received by the sound signal transmission/reception unit (7a, 8a, 7b, 8b), then recorded in the storage unit (4). The first telecommunication equipment (1) comprises interfacing unit (5) with at least a second telecommunication equipment (2) containing the confidential data, unit for transmitting/receiving (7a, 8a, 7b, 8b) a sound signal, and unit for storing (4) data. |
