Voice agents charge per minute of conversation, metered in Yaplet credits — the same unified usage currency that meters Vex AI replies, Copilot suggestions, and every other usage-based feature. Credits convert to your subscription currency on each invoice. This article explains the rate, where to track usage, and the hard limits that protect your workspace from accidental overspend.
The per-minute rate
Voice conversations are billed at approximately $0.12 per minute, rounded up to the nearest second. Counted from the moment the agent answers to the moment the call ends. Knowledge base lookups, workflow tool calls, and context tool calls do not add separate charges — the per-minute rate covers everything the agent does during the call.
Blocked calls do not incur any per-minute charge because they are rejected before the agent picks up. See Block unwanted callers for how rejection works.
How Yaplet credits work
Every usage-based feature in Yaplet is metered in credits, including:
- Voice agent conversations (per minute).
- Vex AI chatbot replies (per reply).
- Copilot agent assist (per use).
- AI document operations (per operation).
Credits convert to your invoice in your subscription currency. You can top up credits manually, or set auto top-up to refill when your balance falls below a threshold. See Buy Yaplet credits for AI and voice usage for the buying and top-up options.
Where to track usage
Voice usage appears in three places:
| Where | What you see |
|---|---|
| Dashboard → Automation → Voice | Per-agent and per-number minute counts for the current period, with quick links to the longest call threads. |
| Each call thread in the inbox | The duration and minute cost of that specific call, shown in the thread footer. |
| Settings → Subscription & billing | Workspace-wide voice credit usage alongside every other Yaplet usage line. Drill in for daily breakdowns. |
Hard limits
A handful of caps protect your workspace from accidental runaway usage:
| Limit | Default | What it does |
|---|---|---|
| Concurrent calls per workspace | 5 | The 6th simultaneous call gets a brief "please call back" message instead of being answered. Stops flash incidents from blowing through your credit budget. |
| Maximum call duration | 30 minutes | The agent ends the call at 30 minutes regardless of state. A safety net against stuck or runaway calls. |
| Inactivity hang-up | ~35 seconds total | If the caller goes silent, the agent says a short check-in after ~10s. If silence continues another 25s, the agent ends the call. |
| Recording retention | 100 per workspace | Once exceeded, the oldest recordings auto-delete. Transcripts are kept indefinitely. |
If you are planning a launch or expecting a known traffic spike that needs more than 5 concurrent calls, contact support a few days in advance. Concurrency is per workspace and can be raised on request.
Cost examples
To give you a sense of scale (assuming the default rate):
- 90-second receptionist call → ~$0.18 in voice credits.
- 4-minute support call → ~$0.48 in voice credits.
- 8-minute sales call → ~$0.96 in voice credits.
- 500 calls a month averaging 3 minutes → ~$180/month in voice credits, plus number rental.
Voice credits are separate from phone number rental and setup fees, which are invoiced as subscription line items. See Setup fees and monthly rental for those charges.
Stopping voice charges
To pause voice spend entirely without cancelling your Yaplet subscription:
- Pause every voice agent from Dashboard → Automation → Voice. Paused agents stop answering calls immediately.
- Optionally cancel each phone number. Cancellation is immediate and refunds the unused prorated portion of the current cycle. The setup fee is non-refundable.
Per-minute charges stop accruing as soon as agents are paused (no calls answered = no credits used). Number rental keeps billing monthly until you cancel each number — see Setup fees and monthly rental for the cancellation flow.
What to read next
For workspace-wide billing — your plan, invoices, payment method, and credit top-ups — see the billing and plans category of the knowledge base.