| 摘要 |
PURPOSE:To continuously communicate with a privacy function in the case of privacy-communication in the case of switching a master set even in a system for which equipments with the privacy function and without it coexist by imparting a function selecting and switching a master set with the privacy function in preference. CONSTITUTION:This system is constituted of a main control part 11, ROM 12, RAM 13, the slave sets 14 of the cordless telephone as an extension terminal, their master set 15, the interface 16 of the extension terminal, an exchanging part 17 composed of a time division switch and line wire interfaces 18 connected to public network 19. The master sets 15 and the slave sets 14 house the equipments with the privacy function and without it mixedly. The main control part 11 controls the whole system and has a function switching the master set in the middle of communication and a function successively speaking by selecting/switching the master set with the privacy function in preference in the case of privacy-communicating before the switching at the time of switching in the half-way of speaking. |
