Relay is an AI phone receptionist that transforms a simple business website into a fully functional virtual receptionist. Built for any appointment-based business, it delivers instant call answering and booking without complex setup. The core value is simplicity: paste a link, click build, and within about 38 seconds Relay reads the website, writes the agent profile, wires the call functions, and activates a real phone number. It answers every call, checks live calendar availability, books appointments, reschedules, cancels, and responds to any business-related question using the company's own information. No dashboards, no prompt engineering, and no call-flow builders are required.
Every missed phone call represents a lost booking, a wasted opportunity. Hiring a human receptionist costs thousands per month and only covers business hours. Building a custom AI agent from scratch involves tedious prompt engineering, integrating calendar APIs, setting up webhooks, and debugging call flows—work that can take an entire day per business. Relay solves this by providing a zero-configuration solution that works immediately. It eliminates the pain of missed after-hours calls and the expense of human staffing. Businesses no longer have to worry about unanswered phones driving customers to competitors. Instead, every call, night or day, is answered professionally, ensuring no customer slips through the cracks.
One major feature is answering every call around the clock. Relay picks up calls 24/7 with a natural human voice, eliminating voicemail, hold music, and endless ringing. It engages in real conversation using natural turn-taking, so callers feel heard and understood. The system operates in the caller's local time and can optionally play café or office ambience behind the voice for a more authentic experience. Because it never misses a call, businesses capture every lead, especially during off-hours, weekends, and holidays. This feature directly converts potential missed connections into booked appointments, boosting revenue without extra effort.
Another core feature is booking directly on the real calendar system the business already uses. Instead of requiring migration to a new scheduling platform, Relay integrates natively with Google Calendar, Square Appointments, Calendly, Outlook, Housecall Pro, Workiz, and Vagaro. When a caller requests an appointment, Relay checks live availability and writes the booking directly onto the business's existing calendar. Callers can also reschedule or cancel their own appointments via phone, and the changes reflect instantly. This seamless integration means no double bookings, no exporting data, and no learning curve for the business. The receptionist becomes an extension of the existing workflow, not a replacement.
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Relay also knows the entire business through a knowledge base built automatically from the website, uploaded files, and manual notes. It can answer questions about menus, prices, hours, and services with verbatim accuracy. Unlike generic AI, it never invents information—if it cannot find an answer, it politely offers to have a team member confirm or transfers to a human. This feature is reinforced by strict rules: the system will not book outside opening hours, will not fabricate prices, and only modifies a caller's own appointment, verified by phone number. Prompt injection and jailbreak attempts are blocked, maintaining security and trust.
The overall workflow is elegantly simple. The user starts by pasting the business's website or uploading a menu or price list; the AI automatically drafts the agent's profile and populates the knowledge base. Next, the user connects one or more booking systems with a single sign-in. Finally, clicking 'build' triggers Relay to write the prompt, wire the call functions, set the voice, and establish webhook connections. Obtaining a local phone number is another click away, and the receptionist goes live immediately. The entire process from link to live call answer takes about 38 seconds with only two clicks. No dashboards to navigate, no technical expertise needed.
Concrete use cases abound. A dental practice receives after-hours calls that previously went to voicemail; Relay answers, checks the doctor's schedule on Google Calendar, books an appointment for next morning, and sends confirmation—all without human intervention. A home services company uses Relay to reschedule appointments when a technician falls behind; the receptionist handles the change and updates the calendar instantly. For agencies, Relay enables managing dozens of client receptionists from one account, each with its own knowledge base, phone number, and booking connection. The system also handles frequent questions about hours, pricing, or availability, freeing staff to focus on revenue-generating tasks.
Target users include small to medium business owners who rely on phone bookings, such as salons, medical offices, contractors, and service providers. Agency operators and BPO resellers will find Relay purpose-built for white-label deployment: each client is a separate project with its own configuration and billing. The platform integrates with major scheduling systems including Google Calendar, Square, Calendly, Outlook, Housecall Pro, Workiz, and Vagaro, with more on the way. Pricing is free to start with no credit card required; minutes run on the user's own Retell AI account, so there is no middleman cost. Relay redefines how businesses handle phone calls—turning every missed call into a booked appointment.
Relay is designed for small to medium businesses that rely on phone bookings, including salons, medical practices, home service companies, and contractors. It also serves agencies and operators who resell AI phone answering services to multiple clients. Specific roles include business owners, office managers, marketing directors, and call center operators who want to eliminate missed calls without hiring additional staff. The platform is especially valuable for any appointment-based business that operates outside standard hours or experiences high call volume.