AI voice agents replace rigid IVR menus with real conversations. Learn how STT-LLM-TTS pipelines work and why 80% of businesses are switching.
Frequently Asked Questions
What is an AI voice agent?
An AI voice agent is software that listens, understands, and responds to callers using speech recognition, a large language model, and text-to-speech — holding natural phone conversations without menus or button presses.
How is an AI voice agent different from IVR?
IVR forces callers through fixed phone-tree menus with keypad input. An AI voice agent understands free-form speech, interprets intent, and takes actions in real time — like booking an appointment while the caller is still on the line.
Can AI voice agents fully replace human agents?
For routine tasks like scheduling, FAQs, and account lookups, yes. Complex or emotionally sensitive calls still benefit from human handoff, which most platforms support natively.
How much do AI voice agents cost compared to IVR?
AI voice platforms typically charge $0.05–$0.15 per minute of conversation. Traditional IVR licensing plus human agent overflow often costs more at scale because IVR alone cannot resolve calls — it only routes them.