Glossary
The voice AI glossary
Plain-English definitions of the terms that matter when you build voice agents, from latency and barge-in to RAG, SIP trunks and turn detection.
What is Agent Assist?What is AI Calling Agent?What is API Request Tool?What is Average Handle Time? (AHT)What is Barge-in?What is Call Deflection? (Containment)What is Code-Switching? (Hinglish / language mixing)What is Conversational AI?What is CSAT? (Customer Satisfaction Score)What is DLT / TRAI Compliance?What is Do Not Call / DND?What is DTMF? (Touch-tone / keypad tones)What is Endpointing?What is Entity? (Slot)What is Function Calling? (Tools / tool use)What is Hallucination?What is Hybrid Search?What is Intent?What is IVR? (Interactive Voice Response)What is Knowledge Base?What is Language Director?What is Large Language Model? (LLM)What is Latency? (Voice latency / turn latency)What is Mean Opinion Score? (MOS)What is Multilingual Voice AI?What is NLU? (Natural Language Understanding)What is Outbound Dialer? (Auto dialer / predictive dialer)What is Prompt? (System prompt)What is RAG? (Retrieval-Augmented Generation)What is Sentiment Analysis?What is SIP Trunk?What is Speaker Diarization?What is Speech-to-Text? (STT / ASR / Automatic Speech Recognition)What is Streaming TTS?What is Structured Outputs?What is Telephony?What is Text-to-Speech? (TTS)What is Time to First Byte? (TTFB (audio))What is Turn Detection? (Turn-taking / endpointing)What is Voice Activity Detection? (VAD)What is Voice Agent? (AI voice agent)What is Voice AI?What is Voice Cloning? (Custom voice)What is Warm Transfer? (Call transfer / escalation)What is WebRTC?What is Word Error Rate? (WER)
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