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On Field Testing of J&R Communication System 

On Field Testing of J&R Communication System 

On Field Testing of J&R Communication System before final installation (For underground tunnel project)

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.

Highlights:

• 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

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

Emergency Telephone System Onsite Testing

Details

  • Bao'an, Shenzhen, China
  • J&R Technology Ltd