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    Certification
    Certification

    2022-05-26

    Railway Telephone System
    Railway Telephone System

    2022-05-11

    The emergency telephone system is an IP emergency system specially set up in the subway. The emergency system is a...

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    Tags: Utility Tunnel Emergency Telephones / IP PBX Telephone System/ Fiber Network Switch/ SIP Voice Gateway/ Highway Telephone System/ Explosion-Proof Telephone/ SOS Emergency Telephone/ School Telephone System / Scenic Spot/Park Telephone System

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    Address: No. 686, Longfei Avenue, Longcheng Street, Longgang District,Shenzhen City, Guangdong Province

    E-mail: telphonesystem@hotmail.com

    Tel: +86 19129355807

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