What is IVR?
Interactive voice response (IVR) is a phone system that greets callers and routes them using menu choices or speech, often handling simple requests like balances without an agent.
In more detail
The classic IVR says 'press 1 for sales.' Menu trees frustrate callers when there are many options or they do not match the problem. Modern systems let callers say what they need, and a language model maps that to an intent. Even so, an IVR is a router and a simple self-service tool. It does not hold a flexible conversation. Voice agents extend the idea by handling open-ended dialogue. Whatever you use, offer a clear path to a human, keep menus short and measure abandonment and misroutes. Test with real call recordings, including accents and background noise.
Example
A clinic's phone line asks 'How can I help?' A caller says 'I need to move my appointment on Thursday.' The system recognizes a reschedule intent and either completes it or hands over to reception with the context.