HealOS AI Receptionist replaces or augments a traditional front desk by answering incoming phone calls 24/7 using conversational AI. Instead of a "press 1 for scheduling" menu, the caller speaks naturally to an AI agent that can check calendar availability, book appointments directly, and answer practice-specific questions (e.g., parking, insurance accepted). If the caller's request is complex or clinical (triage), the system can transfer the call to a human staff member or take a detailed message.