Norphonic Emergency Roadside Telephones (ERT) has been installed in the 5053 meter long Flenja Tunnel, located on the west coast of Norway.

The Emergency Roadside Telephone Call System comprises of a Norphonic Heavy Duty VoIP Telephone with autodial functionality. This means that stranded motorists simply can lift the handset to be put straight through to the emergency response control room, eliminating the need for road users to remember what number to call when in distress.

Advanced VoIP Features
The Norphonic VoIP Heavy Duty telephone comes with two built in fiber ports which allows a redundant back up in case one telecommunication line goes down. Norphonic also features built in Modbus TCP, UDP and SNMP functionality allowing telephone components (hook, microphone and fiber ports) to be monitored, programmed, upgraded or maintained from a central location, greatly reducing maintenance costs associated with traditional telephone systems.

A Prevision traffic management system from Norphonic’s parent company Trafsys was also selected manage the technology inside the tunnel.

After the successful tunnel upgrade, road users in the Flenja Tunnel rely on 41 modern Norphonic VoIP Telephones for their roadside communications.

A key benefit with the new VoIP system is that it can be upgraded in the future without loss or differentiation in the level of service, as Thomas Lyngtun Hansen, technical director at Norphonic explains: ”Using Norphonic Open Source SIP telephones, integrators are able to deliver systems that are better than those that can be achieved when restricted to a
single vendor’s product offering. Using Norphonic, integrators are free to work with any IP based PBX switchboard solution, whether it is Alcatel, Cisco, Asterisk, or other IP solutions such as Vegastream.”

The Norphonic Heavy Duty VoIP Telephones and Prevision was implemented by Otera, a large traffic  system integrator in Norway, and the overall project took nine months to complete. Mr. Are Omdal, project director at Otera commented ”We use Norphonic telephones for all our Emergency Communications in Norway. The products are very reliable and the service is outstanding”

More Information Available: Norphonic Customer Case Study
Please click on the below link to access a Case Study about this installation.
Norphonic ERT installed in Flenja Road Tunnel, Western Norway (English)