Voice agents: when they're worth it and when they're not

Voice agents — the kind that pick up a phone call, talk to a human, and book an appointment — got dramatically better in 2024 and 2025. They're now genuinely useful for some businesses. They're also still expensive and over-pitched.

Use a voice agent when…

• Calls are your primary inbound channel and you're missing them.
• The conversation is mostly transactional (booking, quoting, status check) — not emotional or complex.
• Your customers are over 35 and don't text comfortably.
• Volume is high enough that the cost per call is well under what a human would cost.

Don't use a voice agent when…

• Your customers expect a relationship (high-end real estate, premium B2B sales).
• The conversation has high emotional stakes (clinical, legal, bereavement).
• Volume is low enough that a human picking up is cheaper.
• You haven't first solved the SMS / email response time problem. Don't build voice on top of broken text.

What to expect when you do build one

A well-built voice agent for a trades business handles 60–80% of inbound calls without escalation. The other 20–40% gets handed cleanly to a human. The customer doesn't always know they're talking to a machine, and shouldn't need to. The agent always identifies as one if asked.

A voice agent should be the second thing you build, not the first.