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    • 16. 发明授权
    • Multi-line station interface
    • 多线路接口
    • US06477248B1
    • 2002-11-05
    • US09058534
    • 1998-04-10
    • Howard BruhnkeEric J. WilnerBoris Reynov
    • Howard BruhnkeEric J. WilnerBoris Reynov
    • H04M100
    • H04M1/738
    • An interface device is disclosed for simultaneously connecting access lines to stations. Any one of the stations answers an incoming call from any one of the access lines. The interface device has line access modules each connected to a respective access line, and station access modules each connected to a respective station. A switching network selectively connects at least one of the line access modules to at least one of the station access modules. The switching network is controlled by a control unit in accordance with a predetermined sequence stored in the control unit or selected signals received from the stations through the station access modules. A speech synthesizer provides an audio signal to the stations indicating status the interface device, as well as available features and options of the interface device and the access lines. The control unit provides internal bridging of station access modules to the same access line module. In a private mode, the control unit prevents further connections and interruptions of a private connection between a station access module and an access line module. In response to a ring signal from one of the access lines, the control unit provides a ringing tone to all or selected stations which have no calls in progress, and optionally provides a line waiting tone to the stations which have calls in progress.
    • 公开了一种用于将访问线同时连接到站的接口设备。 任何一个电台从任何一个接入线路应答来电。 接口设备具有各自连接到相应接入线路的线路接入模块和各自连接到相应站的站接入模块。 交换网络选择性地将至少一个线路接入模块连接到站接入模块中的至少一个。 交换网络由控制单元根据存储在控制单元中的预定顺序或通过站访问模块从站接收的所选信号来控制。 语音合成器向指示接口设备状态的站提供音频信号,以及接口设备和接入线路的可用特征和选项。 控制单元将站接入模块的内部桥接提供给同一接入线模块。 在私有模式中,控制单元防止站访问模块和访问线路模块之间的私有连接的进一步连接和中断。 响应于来自一条接入线路的振铃信号,控制单元向没有呼叫进行中的所有或所选择的站提供振铃音,并且可选地向正在进行呼叫的站点提供线路等待音。