---
title: Overview
description: Send SMS notifications
---

SMS is a channel type for sending text messages to mobile phones.

## Supported Providers

<Cards>
  <Card title="Twilio" href="/docs/channels-providers/sms/twilio">
    Global SMS delivery platform
  </Card>
  <Card title="SMSAPI" href="/docs/channels-providers/sms/smsapi">
    Leading Polish SMS provider (smsapi.pl / .com)
  </Card>
</Cards>

## Templates

SMS templates use plaintext content type.

Use Liquid templating for dynamic content:

```liquid
Hi {{ recipient.first_name }}, your order #{{ data.order_id }} has shipped!
```

Available variable contexts:
- `recipient.*` - Recipient user data (first_name, last_name, phone, etc.)
- `actor.*` - User who triggered the notification
- `data.*` - Custom payload passed when triggering the notiflow

## Phone Number Format

Store recipient phone numbers in E.164 format:

```
+15551234567  (US)
+447911123456  (UK)
```