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    • 6. 发明授权
    • Multiline telephone answering system and interface therefore
    • 多线电话应答系统和接口因此
    • US5115464A
    • 1992-05-19
    • US388345
    • 1989-08-02
    • Michael I. Waldman
    • Michael I. Waldman
    • H04M1/64
    • H04M1/647
    • A multiline telephone answering system includes a playback deck for supplying a prerecorded message and a plurality of interface units for interconnecting a plurality of telephone lines and the playback deck. Each interface unit is associated with a particular telephone line and supplies a start signal to the playback deck when its associated line is ringing. Each interface unit is responsive to the state of the playback deck for connecting its line to the playback deck only at the start of the prerecorded message and inhibits the connection between the playdeck and its telephone line unless that telephone line is ringing at the start of the prerecorded message. All telephone lines which are ringing at the start of the prerecorded message are connected to the playback deck to hear the prerecorded message from the start and all the telephone lines which are not ringing at the start of the prerecorded message remain unconnected to the playback deck throughout the playing of the message irrespective of whether they subsequently begin ringing.
    • 多线电话应答系统包括用于提供预先记录的消息的播放面板和用于互连多个电话线和播放面板的多个接口单元。 每个接口单元与特定的电话线相关联,并且当其相关联的线路振铃时,将起始信号提供给播放台。 每个接口单元响应于播放台的状态,仅在预录消息开始时将其线路连接到播放台,并且禁止播放台与其电话线之间的连接,除非该电话线在 预录信息。 在预先记录的消息开始时振铃的所有电话线路连接到播放台,以从开始听到预先记录的消息,并且在预先记录的消息开始时未振铃的所有电话线路始终未连接到播放台面 无论他们是否随后开始响起,播放该消息。