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SOS Emergency call box system over IP

The emergency call system over IP allows voice and control data communications between the roadside emergency call boxes and the Control Center where the emergency calls are received and the whole system is managed. Voice and data are transported over an IP network using standard protocols TCP/IP, UDP/IP and VoIP. SOS emergency call box is phisically connected by means of 10BASE-T to a switch that belongs to the transport backbone towards the Control Center. The call boxes therefore do not need a dedicated IP network since they are connected to the same backbone as other equipments in the road or tunnel.

Configuration of the SOS emergency call system IP


IP Emergency call solutions

IP call box electronic board

IP Call box

Handles a master call box and a slave call box. Functionalities: user and maintenance call, call box testing under request, automatic alarm notification and low power consumption. Features:
• Two ports Ethernet 10BASE-T with RJ-45 connector. The second port acts as a repeater and is used to connect call boxes that are far from the switch.
• Serial port for configuration and maintenance.
• Ports for connection with the call box equipment . Both master call box equipment and slave call box equipment include a pushbutton for emergency call, a maintenance call detector (activated by a magnet), an open door detector, speakers and microphone.
• Low power function.
• Voice over RTP/RTCP with G711 A law codification.
• Echo canceller.