On A89 Emergency Roadside Telephones Network installed by MT for VINCI

For Vinci Autoroute Company, Maitrise Technologique manufactures and installs the Emergency Roadside Network System on A89 motorway. This environmental friendly mountain motorway, includes  some  viaducts and 3 tunnels on a 3 kms lenght. The emergency roadside system comprises 180 ETON ERT (Emergency Roadside Telephones on optical network).