Thousands units of J&R weatherproof VoIP Telephones are successfully implemented for Highway Tunnel Projects in Turkey

So far,all of telephones have been installed at the below tunnels:

Ankara, Cherkes Tunnel;Kastamonu, Amasra,T1, T2 tunnels;Kahramanmaras, Göksun tunnel; Hakkari, Cukurca, Saritas, Artvin, Yusufeli tunnels;Trabzon, Akyazı tunnels;Rize, İkizdere tunnels

For any railway/metro/highway/tunnel telecommunication system application, welcome to freely contact me at: sales@jrteck.com