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  • 06/01/2021
    Analog hybrid voice gateway.

    The analog voice gateway mainly coordinates the IP broadcast telephone in the pipe rack with the extension telephone of the program-controlled exchange, including the relay function for the incoming and outgoing calls of the external local telephone, so as to ensure the integration of different communication modes to form the same call network and access… Continue reading Analog hybrid voice gateway.

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  • 28/06/2020
    Main Functions of Roadside Extension/Tunnel Extension

    Emergency phone users can directly communicate with the operator of the emergency phone console, and push-to-talk (easy to operate). After the user presses the extension button, the sub-unit can automatically send a call to the console host of the monitoring center, and transmit basic information such as the local kilometer mark, up-down direction, etc. Each… Continue reading Main Functions of Roadside Extension/Tunnel Extension

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