Securing Norway’s National Highway Tunnels with the JR103-CB-SIP Industrial Waterproof Telephone System ### Subtitle (English)

Over 2,500 JR103-CB-SIP SIP emergency phones deployed for reliable tunnel communication in extreme Nordic environments

Norway has deployed more than 2,500 units of JR103-CB-SIP industrial waterproof telephones across its national highway tunnels. Boasting IP66/IP67 protection, a wide temperature range of -40°C to 65°C and full SIP 2.0 compatibility, this rugged emergency phone delivers clear one-touch hotline calls even in high-noise, salt-fog and freezing tunnel conditions. It supports PoE power supply and remote management, ideal for highway tunnels, mining, offshore wind farms and other critical infrastructure to accelerate emergency response and improve public safety.

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Bai Shi Xia Jie, Bao An Qu, Shen Zhen Shi, Guang Dong Sheng, China, 518103

J&R technology limited

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