GB 3376-1982
AbolishedInband pulsing single frequencyline signalling system for telephone automatic switching network
电话自动交换网带内单频脉冲线路信号方式
Application Summary AI generated
This standard specifies the technical requirements for inband single-frequency pulse line signaling used in China's telephone automatic switching network. It defines the signaling frequencies, pulse durations, and transmission characteristics for call setup, supervision, and release over trunk lines between exchanges. The standard applies to the design, testing, and maintenance of analog telephone switching systems within the national public switched telephone network (PSTN).
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