# iPhone Device
Please note that iOS user interface usually changes in subtle ways with every release, so the exact location of these settings may be a bit different depending on your iPhone iOS version, but this guide should provide the general information on where you may find these settings.
### APN Settings
Monogoto SIM cards require your phone to have correct APN settings in order to allow usage of the mobile data. Please note that before configuring APN in your device, we advise you to double check what APNs are available for usage in your Monogoto portal.
To check what APNs are available for your usage, please follow these steps:
1\. [Login into Monogoto portal using your user account](https://console.monogoto.io/#/login)
2\. Go to **Network** section
3\. Check what APNs you have available in the list.
4\. We advise you to use APN that has icon
(Apply Settings) in column **Settings status**. In this example the APN we advise you to use is **data.mono**
{% hint style="info" %}
Please note that the APN you want to use in your device must be assigned in Thing Group settings
{% endhint %}
To check APN settings in your mobile device please follow these instructions:
1\. Open **Settings**
2\. Go to **Cellular**
3\. Open **Cellular Data Network**
4\. Make sure you have correct **APN** (in this example APN is **data.mono**)
5\. For your device to fully apply APN settings, please restart the device.
{% hint style="info" %}
Please note that based on your used language in your phone, the location of APN settings may change.
* If your phone’s language setting is English (US/Canada), then go to **Settings > Cellular > Cellular Data Network**.
* If your phone’s language setting is English (UK), then go to **Settings > Mobile Data > Mobile Data Network**.
{% endhint %}
###
### Data Roaming Settings
Monogoto SIM cards are global roaming SIM card that can be used all around the world, therefore for data to work, you must enable Data Roaming in your mobile phone settings.
To enable data Roaming in your mobile device please follow these instructions:
1\. Open **Settings**
2\. Go to **Cellular**
3\. Press on **Cellular Data Options**
4\. Make sure you have **Data Roaming** enabled (green = enabled)
###
### Mobile Data Settings
Monogoto SIM cards are using local network roaming to provide our customers with mobile data for their needs. Therefore in order to get access to Monogoto SIM cards mobile data, you have to make sure you have cellular data enabled in your mobile phone settings.
To enable mobile data in your mobile device please follow these instructions:
1\. Open **Settings**
2\. Go to **Cellular**
3\. Make sure you have **Cellular Data** enabled (green = enabled)
---
# 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.monogoto.io/getting-started/general-device-configurations/iphone.md?ask=
```
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.