> ## Documentation Index > Fetch the complete documentation index at: https://docs.luly.ai/llms.txt > Use this file to discover all available pages before exploring further. # Welcome to Luly AI > Welcome to the documentation of Luly AI Luly is a platform for AI phone calling. Using our API, you can easily send or receive phone calls with a programmable voice agent. 1. **Fast**: sub-second latency from person speaking to AI responding. 2. **Reliable**: it’s our responsibility, day in and day out, to make sure your phone calls work.No exceptions. 3. **Ultra flexible**: configure all aspects of your agent’s behavior, by settings it’s voice,creating transfer scenarios, configuring the initial greeting, etc. ## What you can do with Luly Dispatch AI phone calls to call customers,leads, and to streamline operations. Create inbound phone numbers for customer support, etc. Connect external APIs and take live actions during phone calls. Extract JSON data to answer questions about your calls. Simultaneously send thousands of calls at once. Fine-tune a custom LLM using your enterprise’ call recordings and transcripts. ## Getting Started Customize your docs to your company's colors and brands Automatically generate endpoints from an OpenAPI spec Build interactive features and designs to guide your users Check out our showcase of our favorite documentation