The Common Battery Telephone system is a vital maritime communication solution, enabling critical connections between the wheelhouse, engine control room, and steering gear room, especially during emergencies. Designed to be waterproof and dustproof, it operates on 24V DC power, supporting both voice and signal functions. Available in flush, wall, waterproof, portable, and intrinsically safe models, it’s compatible with various accessories and suitable for potentially explosive environments. The system interfaces with Horn/Bell/Flashing Light and Foot Switch components and has been tested to IEC60945 standards, earning CE and DNV approvals for maritime use.