Crito Voice AI
A production voice AI system built for hotels and service businesses. It picks up every inbound call, understands the customer in natural language, checks availability, creates bookings, and transfers to a human when needed. Every call is recorded, transcribed, and summarised automatically.
The Problem
Hotels and service businesses miss calls outside business hours or during peak times — losing bookings to competitors who answer immediately. Staff can't scale to cover every call.
The Solution
Built an end-to-end voice AI platform using LiveKit for real-time audio streaming, OpenAI for conversation handling, and Twilio for telephony. Designed the full architecture and deployed it to production independently.
My Contribution
- ✓Architected the complete voice AI pipeline from call ingestion to response delivery
- ✓Integrated LiveKit for low-latency real-time audio streaming
- ✓Built conversation flow management with context memory across multi-turn calls
- ✓Implemented tool integrations so the AI can check availability and create bookings live during a call
- ✓Connected Twilio for inbound call routing and fallback transfer logic
- ✓Set up call logging: transcripts, audio recordings, AI summaries, and a management dashboard
Key Features
24/7 Call Handling
Answers every inbound call instantly, in natural language. No voicemail, no missed calls.
Live Booking Actions
Checks availability and creates reservations during the call, connected to the PMS in real time.
Smart Call Transfer
Recognises when a human is needed and transfers the call to the right staff member.
Post-Call Summaries
Every call produces a transcript, AI-written summary, and email notification for the team.
Multi-Language Support
Handles calls in multiple languages — built for international hotel guests.
Impact & Metrics
Technology Stack
Frontend
Backend & Infrastructure
Full Stack
Deployment: Cloud (Serverless + Container)
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