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

# SMS

> Configure and manage SMS notifications for your product.

The **SMS** tab (Monitor → SMS Service) is where you enable and manage SMS
notifications for your product. Turn the service on and your devices and rules
can send text messages — alerts, confirmations, threshold notifications.

## What you can do

* **Enable / disable** the SMS service for this product
* Manage how SMS notifications are sent

## Sending an SMS

From firmware (Arduino), send a message with the SDK:

```cpp theme={null}
device.sendSMS(productId, to, message);
// or the response variant: device.sendSMSWithResponse(...)
```

Rules configured on the product can also trigger SMS notifications when a
condition is met.

<Card title="Next: Users" icon="users" href="/studio/users">
  Monitor who's using your product.
</Card>