retellai-core-workflow-a

# Retell AI Core Workflow A ## Overview Build and configure voice agents with custom prompts, function calling, and call flow logic. ## Prerequisites - Completed `retellai-hello-world` ## Instructions ### Step 1: Agent with Function Calling ```typescript const llm = await retell.llm.create({ model: 'gpt-4o', general_prompt: `You are a booking assistant for Dr. Smith's office. - Help callers book, reschedule, or cancel appointments - Collect: name, phone, preferred date/time - Confirm all details before booking`, functions: [ { name: 'book_appointment', description: 'Book a new appointment', parameters: { type: 'object', properties: { patient_name: { type: 'string' }, phone: { type: 'string' }, date: { type: 'string', description: 'YYYY-MM-DD format' }, time: { type: 'string', description: 'HH:MM format' }, }, required: ['patient_name', 'phone', 'date', 'time'], }, url: 'https://your-api.com/appointments', speak_during_execution: true, speak_after_execution: true, }, ], }); ``` ### Step 2: Configure Voice and Behavior ```typescript const agent = await retell.agent.create({ response_engine: { type: 'retell-llm', llm_id: llm.llm_id }, voice_id: '11labs-Rachel', agent_name: 'Dr. Smith Booking Agent', language: 'en-US', opt_out_sensitive_data_storage: false, end_call_after_silence_ms: 10000, // End call after 10s silence ...