How to Build an AI Phone Agent with Twilio Conversation Relay in C Sharp

Amanda Lange's tutorial on building an AI phone agent with Twilio Conversation Relay in C# guides developers through creating a voice AI agent using .NET 9's API tools. The tutorial emphasizes the integration of various components, such as speech recognition, text-to-speech, turn detection, and real-time audio streaming, facilitated by Twilio Conversation Relay to maintain low latency for a natural conversational experience. By leveraging the OpenAI API and a WebSocket server, developers can manage conversation history and implement live flight lookups via tool calling. The guide also provides details on setting up the necessary environment, configuring Twilio and Conversation Relay attributes, handling interruptions, and optimizing voice responses for the fictional AI agent "Hoot," designed for Owl Air. The process includes practical steps such as setting up the development environment, coding the AI logic, and configuring WebSocket connections, culminating in a functional AI phone agent capable of handling inquiries about flight status, baggage policies, loyalty points, and booking changes.

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