> For the complete documentation index, see [llms.txt](https://navixy.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://navixy.com/docs/user/guide/devices-and-settings/device-specific-controls/other/sms-channel-usage.md).

# SMS channel usage

Configure how a GPS device uses its SMS channel in Navixy with the SMS channel usage block, including a low-battery alert mode.

Selects which messages the device sends exclusively via the SMS channel instead of the mobile data connection (GPRS). This is useful when mobile data is unavailable or unreliable, for example in areas with weak coverage.

{% hint style="info" %}
Enabling SMS delivery for a message type increases the number of SMS messages the device sends, which may incur additional charges depending on the SIM plan.
{% endhint %}

## Settings

The block shows a list of message types that can be sent via the SMS channel. Available options depend on the device model. The most common option is:

* **Low battery**: send a low-battery alert via SMS.

## Availability

Appears on device models that expose SMS channel options.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

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

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://navixy.com/docs/user/guide/devices-and-settings/device-specific-controls/other/sms-channel-usage.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

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.