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J&R Communication System Project Field Test for Roadside Tunnel


J&R Communication System Project Field Test for Roadside Tunnel
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 -35°C to +65°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.