# Which alerting channels does ilert support?

ilert supports bi-directional alerting via:

* **SMS**: ilert supports sending SMS alerts worldwide. For many countries, SMS alerts are sent from a local number. See [here](https://docs.ilert.com/getting-started/phone-numbers#sms-alerts) for details.
* **Phone calls**: ilert supports international voice calls and converts the alert summary text into speech using text-to-speech technology. See [here](https://docs.ilert.com/getting-started/phone-numbers#voice-alerts) for the caller IDs that ilert uses when making phone calls.
* **Emails**
* **Push notifications** on iOS and Android
* **WhatsApp**
* **Telegram**

These channels are one-to-one notification channels and are configured in the [user's profile](https://docs.ilert.com/alerting/configure-alerting/notification-settings).

Moreover, ilert supports sending messages to chat tools like [Slack](https://docs.ilert.com/integrations/slack), [Microsoft Teams](https://docs.ilert.com/integrations/microsoft-teams/chat), [Mattermost](https://docs.ilert.com/integrations/mattermost) and [Discord](https://docs.ilert.com/integrations/discord). These channels are configured as alert actions on the alert source. Please refer to the integration guides for instructions on setting them up.

{% hint style="info" %}
**Related Documentation**

* [Phone Numbers](https://docs.ilert.com/getting-started/phone-numbers)
* [Notification Settings](https://docs.ilert.com/alerting/notification-settings)
* [Chat Integrations](https://docs.ilert.com/chatops/overview)
  {% endhint %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.ilert.com/knowledge-base/alerting-and-notifications/which-alerting-channels-does-ilert-support.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.