Warm Transfer with Ruby and Rails

The text provides a step-by-step guide on implementing warm transfers for support applications using Ruby on Rails and Twilio. Warm transfer allows an agent to join a call in progress, eliminating the need to re-dial a customer's phone number. The process involves setting up a voice web hook, connecting agents to calls, generating capability tokens, handling incoming calls, providing TwiML instructions, dialing agents into calls, and performing warm transfers when necessary. The guide also includes code snippets for various parts of the implementation.