> ## Documentation Index
> Fetch the complete documentation index at: https://docs.thinnest.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# WhatsApp calls

> Customers call your business from WhatsApp, and your agent answers.

A customer taps the call button in your WhatsApp chat, and your agent picks up —
the same agent, with the same voice, knowledge and tools, that answers your phone
line and your website. No phone number to rent, and nothing for the customer to
install: they are already in the chat.

## Turning it on

1. On **Connect WABA**, press **Calls** on the number.
2. Switch on **WhatsApp calls** and save.

That is all. Switching it on also turns on **Answer calls** for the agent on that
number, and gives it a voice if it had none. Its **WhatsApp** row on the Voice page
shows **On** — it follows this switch, and every agent has it on by default.

<Note>
  The **WhatsApp calls** switch is the one that decides. While it is off, this
  number answers no calls — even if the same setting is on in Meta's WhatsApp
  Manager. Switching it off turns the agent's WhatsApp row off too, and leaves the
  website and phone as they are.
</Note>

## The settings

| Setting | What it does |
| - | - |
| **WhatsApp calls** | On or off for this number. |
| **Show the call button** | Whether customers see a call button in your chat. They can still call from a message that has a call button. |
| **Allow callback requests** | When a call can't be answered, the customer can ask to be called back. |
| **Call hours** | When customers can call. Outside them, WhatsApp offers to chat or request a callback instead. Off means always available. |
| **Closed days** | Up to 20 dates — holidays, events — when calls aren't taken. |

The settings are read from WhatsApp each time you open them, so a change made in
Meta's WhatsApp Manager shows up here too.

Call hours are edited one range a day here. WhatsApp allows two a day; a second
range set in WhatsApp Manager is kept as it is unless you edit that day.

## Who can use it

WhatsApp only enables calling for businesses with a **daily messaging limit of at
least 2,000 people**. Every new business starts lower, and Meta raises it as you
send messages people engage with, and once your display name is approved. If your
business isn't there yet, the Calls window says so over its settings and
holds the Save button until it is. While **WhatsApp calls** is off, the other
settings in the window are greyed out.

## What it costs

A WhatsApp call is billed at your **voice per-minute rate** — the same as a phone
call — for the time your agent is on it, rounded up to the next whole minute.
Calls your customers make to you cost nothing from Meta.

## Not here yet

* **Your agent calling customers on WhatsApp.** Coming next: callbacks, "ring the
  customer now", voice campaigns and the call API will be able to use WhatsApp, for
  customers who have allowed calls from your business.
* Video calls.

If a call doesn't connect, the reason is shown in WhatsApp's words with what it
means — see [WhatsApp error codes](https://thinnest.ai/whatsapp-error-codes).