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J&R Communication System Project Field Test For Roadside Tunnel

J&R Technology Ltd | Updated: Jan 05, 2018

Its' commissioning and operations will provide valuable experience on the overseas promotions of fully automatic sample preparation equipment.

Designed for VoIP/SIP (Voice over Internet Protoco) the station offers an array of communication features such as integrated hotline, group call, call priority and over-ride, to name just a few. This enables you to deliver instant, efficient and secure voice, and data services.


        • Robust housing with Aluminum frontplate

        • Made for critical communication in rough environments like roads, tunnels and ships.Extremely water and dust resistant, IP-67.

        • Temperature -40°C to +75°C

        • PoE Powered from one IP network cable

        • Magnetic reed hook-switch ensures minimal wear and tear.

        • Relay output for remote control, e.g. doors, gates & strobes

        • Button with bi-color LED ring

Audio Technology:

       • Support SIP 2.0 (RFC3261)

       • Codec: G.711A/u, G.7231 high/low, G.729, G.722

       • Echo cancellation: Support G.168 and hand-free can support 96ms

       • Supports full duplex

       • SIP support SIP domain, SIP authentication (none, basic, MD5), DNS name of server

       • DTMF:SIP info, DTMF Relay, RFC2833

       • Call control features: Flexible dial map, support hot-line

Network Features:

       • WAN/LAN: support Bridge mode

       • Support static IP address

       • Support DHCP get IP on WAN port

       • Support VLAN

       • Support web config

J&R Technology Ltd is the proven and preferred audio and data communication choice for environments that require the protection of human life, property, assets and/or the management of critical activities. And we are always ready to help you win and complete projects successfully by offering high quality products and our specific know how.