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    • 4. 发明授权
    • Telecommunications system for accessing subscriber premises equipment
using ring suppression
    • 使用环形抑制接入用户住宅设备的电信系统
    • US5737400A
    • 1998-04-07
    • US607602
    • 1996-02-27
    • Debashis BagchiRichard Wilder
    • Debashis BagchiRichard Wilder
    • H04M1/00H04M1/663H04M3/00H04M11/00H04M3/42
    • H04M1/663H04M11/002
    • A no-ring access telecommunications system is connected to a subscriber's telephone line at the demarcation point between the public switched telephone network and the telephone line or at the utility meter site on the subscriber's premises, or at a central office. The telecommunications system comprises a processor, and a normally open switch which is selectively closed by the processor to connect the telephone line to another line servicing subscriber telecommunications equipment connected in parallel thereto. The telecommunications system is programmable to suppress the first power ring signal of an incoming call on the telephone line from a remote host system. The ring signal is analyzed for Caller ID, distinctive ringing or other special tone. If a valid Caller ID, distinctive ring signal or other special tone is provided, the switch is closed. The Caller ID is regenerated on the line servicing the subscriber telecommunications equipment. The subscriber telecommunications equipment is configured to monitor the line servicing it and to establish a connection with the host system or calling party when an incoming call is directed to it. The telecommunications system monitors the same line for an off-hook signal and can interrupt a data call to service a voice call. The telecommunications system is also programmable to remotely control an appliance via signals on a power line, or utility meters via a radio frequency transceiver, in response to a request by a host system via the telephone line.
    • 无环路接入电信系统在公共交换电话网络与电话线之间的分界点或用户住宅的公用事业仪表现场或中央局连接到用户的电话线路。 电信系统包括处理器和常开开关,其由处理器选择性地关闭,以将电话线连接到服务于并行连接的用户电信设备的另一线路。 电信系统是可编程的,以从远程主机系统抑制来自电话线路的呼入的第一电力环信号。 分析振铃信号的来电显示,特殊振铃或其他特殊音调。 如果提供有效的来电显示,特殊振铃信号或其他特殊音调,则开关关闭。 呼叫者ID在用户电信设备的线路上重新生成。 用户电信设备被配置为监视对其进行维护的线路,并且当来电呼叫被指向时与主机系统或主叫方建立连接。 电信系统监视同一线路的摘机信号,并可以中断数据呼叫以服务语音呼叫。 电信系统还可编程,以响应于主机系统经由电话线路的请求,通过电力线路上的信号或通过射频收发器的公用事业仪表来远程控制设备。