Home > News >

J&R SIP Telephone Call Terminal Project Field Test for Roadside Tunnel


SIP Telephone Call Terminal Project on Field Testing

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.