In this session, builders will learn to create practical voice-agent workflows with CALL-E, starting with a simple one-shot phone call and extending to autonomous task execution.We’ll first walk through how to create a one-shot call with CALL-E: define a goal, provide the necessary context, trigger a real phone interaction, and receive structured results you can integrate into an application. Then, we’ll explore how to build a long-running task goal that allows an agent to iteratively reason, take actions, and make progress toward a business objective over multiple steps.The session is designed to help developers understand CALL-E's core building blocks and move from a single phone interaction to more powerful agentic workflows. By the end, builders will have the foundation to create voice agents that can not only make calls, but also autonomously complete real-world tasks through phone-based interactions.