Tunnels

Telephony for tunnels: critical communications at the service of safety and traffic continuity

Reliable and durable solutions to ensure user safety and the smooth operation of underground infrastructures.

Solutions designed for demanding environments

A tunnel requires high-performance communication and reliable alerts to ensure optimal operation.

For many years, operators have relied on A2S Voice solutions, designed to meet high requirements and operate sustainably, even in restrictive and critical environments.

Today, safety, assistance, incident management, and user information have become essential pillars of underground infrastructure, with an absolute priority: the protection of people and immediate responsiveness in every situation.

The challenges of communications in tunnel environments

A2S Voice solutions bring concrete value to tunnel operations by strengthening the safety of users and teams through reliable and immediate communications. They guarantee excellent intelligibility, even in confined and noisy environments, while ensuring traffic continuity and operational coordination.

Robust and durable, they also contribute to reducing risks and improving responsiveness to critical situations.

Operational constraints

Real-time coordination between operations teams, maintenance teams, and supervision centers
Rapid incident management (accidents, fires, evacuations)
Intervention in confined environments with limited access

Environmental and regulatory constraints

Presence of humidity, dust, and vibrations
Confined environment with acoustic constraints and noise propagation
Need for robust, reliable, and durable equipment

The A2S Voice solution

A2S Voice provides a clear response to tunnel challenges with a robust infrastructure, adapted equipment,

and a tailor-made approach.

A robust communication infrastructure

Reliable IP / SIP telephony
High availability and redundancy
Ensured service continuity

Equipment adapted to demanding environments

Rugged phones for indoor and outdoor use
Resistance to humidity, dust, and vibrations
Design adapted to confined environments

Complete integration

Compatibility with existing systems
Interconnection with safety and traffic management systems
Tailor-made deployment according to zones

Centralized and simplified management

Equipment supervision
Facilitated maintenance
Scalability of installations

The benefits

A2S Voice solutions play a key role in securing and operating tunnels by providing reliable communications, even in the most critical situations. They ensure clear and understandable exchanges despite the acoustic constraints inherent to confined environments, while guaranteeing the service continuity essential for maintaining traffic.

By facilitating the coordination of operations teams and accelerating decision-making, they contribute to improving overall operational efficiency. Designed to last, the installations withstand the demanding conditions of tunnels and help reduce risks by strengthening the ability to react to incidents.