Glossary
Voice Bot
Generic term for any automated phone-based voice system — ranging from primitive scripted bots to modern AI voice agents. Often used interchangeably with "AI voice agent".
Historically "voice bot" referred to scripted, rigid systems built on early conversational platforms (think 2015–2019 era) that handled narrow, deterministic interactions and failed on anything unexpected. Modern voice bots are functionally AI voice agents — built on LLMs that handle open-ended conversation, multi-turn context, interruptions, and dynamic knowledge lookup. The term "voice bot" still appears in vendor marketing for older-generation tools; "AI voice agent" is the current preferred term for modern capability.
Why it matters
- Buyers should distinguish legacy voice bots (rigid, scripted, high failure rate) from modern AI voice agents (LLM-powered, conversational).
- Vendor positioning matters: "voice bot" branding sometimes signals older underlying technology.
- Modern voice bots / AI voice agents handle natural conversation including interruptions and ambiguity.
- Caller experience has flipped: legacy voice bots damage CSAT; modern voice agents often improve it.
- Cost-per-minute economics have improved dramatically vs the voice-bot era.