The OP-6510B is a complete intercom solution designed for effective communication across physical barriers in customer-facing service environments. This system includes the OP-6510 intercom paired with a magnetic induction loop, supporting clear dialogue between agents and clients, including those who use hearing aids. Engineered for use in settings such as bank counters, reception desks, and ticket windows, the OP-6510B facilitates direct two-way audio transmission while complying with accessibility standards. The system incorporates mechanical call buttons for operational reliability, an agent-side microphone for private input, and a customer-side unit that combines a microphone and loudspeaker for consistent audio delivery. The addition of the magnetic loop system enhances communication for individuals with hearing aids equipped with a T-coil, ensuring inclusivity in public service points. With its robust design and practical configuration, the OP-6510B is well-suited for secure environments where accurate and intelligible communication is required. The system’s focused performance, combined with its accessibility support, makes the OP-6510B a dependable component in service infrastructure for organisations prioritising both communication quality and user inclusivity.