Voice AI agents are billed per minute of call time. This is separate from your SMS and email usage, so it helps to track it on its own when you are forecasting spend.
How Voice AI Billing Works
Every minute a Voice AI agent is on a live call counts toward your usage. Billing starts when the call connects and stops when it ends, rounded according to the platform's call billing rules.
Per Minute
You are billed for each minute a voice agent spends on a connected call.
Separate from SMS and Email
Voice minutes are tracked and billed independently from your message usage.
Spam Calls Add Up
Unwanted calls eat minutes too, which is why spam detection matters.
What Drives Voice Minute Usage
- Call length: longer conversations use more minutes, especially when agents handle complex questions.
- Call volume: more inbound and outbound calls means more total minutes billed.
- Spam and telemarketer calls: every minute spent on an unwanted call is a minute not spent on a real customer.
Turning on spam call detection and auto-blocking is one of the most effective ways to protect your voice minutes. It keeps your agents focused on real customers instead of burning time on robocalls.
Tips to Keep Voice Costs Down
Enable spam detection and auto-blocking to filter out unwanted calls.
Design agent scripts to resolve calls efficiently without unnecessary back-and-forth.
Set guardrails so agents do not run long on low-value conversations.
Monitor call logs for unusually long calls that may indicate a loop or stuck state.