We’re proud to share another successful installation of our JR101-FK waterproof emergency telephone — this time in the Silvertown Subsea Tunnel, UK, a major infrastructure project supported by Indra Sistemas, S.A.

Designed for harsh environments like tunnels and offshore applications, the JR101-FK has once again proven its durability, clear audio performance, and IP-rated waterproof design in real-world conditions.

To make this collaboration even more meaningful, our engineers were specially invited on-site by the client for a firsthand inspection and discussion — an opportunity that strengthens trust and technical integration.

Swipe through to see the installation images from the tunnel project!

At J&R Technology, we’re not just delivering telephones — we’re delivering safety, reliability, and tailored communication solutions for the world’s most challenging environments.

If you’re looking for rugged, industrial-grade communication equipment, let’s talk!