How can we make industrila telephone calls in a highway?

How can we make industrila telephone calls in a highway?

Recently,emergency suitation in the sea/marine always happened. We need use special telephone to contact related person.So our marine telephone could become your good choice.its usually have weatherproof /waterproof function, could protect the telephone and avoid the water enter, with defend grade IP67.The phone can be wall mounted and the installation is simple, firm after installation, not easy to damage. The appearance is beautiful and the color ,logo could be customized . We specializing in the production and sales of products applicable for Marine & Ship, Metro& Railway, Highway call box, Offshore maritime, Tunnel construction, Mining, Dockside & airport, Iron & steel factory, Power plant, Petrochemicals factory, etc.

Ningbo Joiwo is always pay attention to improve the product quality to suitable present market.

If you have any idea about our industrial analog/Voip telephone for marine/railway/dock/port/highway /Tunnel project or anything else,Ningbo Joiwo Explosionproof warmly welcome your requirement, with professional R&D and years of experienced engineers, we can also tailor our solution to meet your specific business needs.