A phone-call voice agent that calls real APIs (weather, orders, balances) in the middle of a conversation. Speech recognition, LLM tool-calling, and Telnyx text-to-speech in one Flask file. One API key for calls, AI inference, and TTS.
The Problem: Voice Agents That Lie
You have an AI voice agent. It picks up calls. It greets callers. It responds in natural language.
But the moment someone asks, "What's the weather in San Francisco?", "Where is my order 12345?", or "What's my account balance?" — the agent hallucinates. It guesses. It invents a plausible-sounding answer with zero real data.
Voice agents without function calling are LLMs talking to thin air. They have no way to reach out for live information mid-conversation. They just pattern-match.
