How AI Phone Answering Actually Works Under the Hood

How AI Phone Answering Actually Works Under the Hood I've been deep in the AI voice space for a while now, and the amount of misconception about what "AI phone answering" actually means is wild. Let me break down the tech stack. The Architecture A modern AI phone answering system has roughly 4 layers: Caller → Telephony (SIP/PSTN) → STT Engine → LLM → TTS Engine → Caller Layer 1: Telephony You need a phone number that routes to your system. Most use SIP trunking providers...