What is an AI Voice Agent and How Does It Work?
An AI voice agent is a conversational system that handles phone calls or in-app interactions without human intervention. At AISDC we build these pipelines across three stages: first, the user's speech is converted to text by a speech-to-text engine such as Groq Whisper STT, optimized for Latin American Spanish; next, a low-latency LLM like Cerebras processes the conversational context and generates a coherent reply; finally, a TTS engine returns natural-sounding audio to the caller. This entire cycle happens in milliseconds, enabling smooth, natural conversation free of awkward silences or robotic phrasing. The voice assistant handles interruptions, partial confirmations, and topic shifts—behaving like a real interlocutor rather than a rigid voice bot following a decision tree.