> For the complete documentation index, see [llms.txt](https://docs.monogoto.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.monogoto.io/getting-started/general-device-configurations/cellular-modems/smart-cash-register-configuration-to-use-cellular-sim-as-wifi-backup.md).

# Smart Cash Register Configuration to Use Cellular SIM as WiFi Backup

The following guide shows example configuration for smart cash register to use cellular SIM as a backup in case WiFi stops working properly.

1\.       Press on **internet settings** in the tool bar.

![](https://3922449203-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M0mPxGpottOEfcucXOR%2F-Mf3Qvxe2AwQZct3Bp1s%2F-Mf3_pvEe9WzSi7Lt-Qo%2F0.png?alt=media\&token=392924a3-196d-470d-b495-2e154a01cb9f)

2\.       Press and hold **Cellular** button for a few seconds.

![](https://3922449203-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M0mPxGpottOEfcucXOR%2F-Mf3Qvxe2AwQZct3Bp1s%2F-Mf3a8rTIBVgAH5oZexu%2F1.png?alt=media\&token=8ca66160-4ded-4898-8b51-c8cc58e463f9)

3\.       You should see **Go to Settings** button appear, please press on this button.

![](https://3922449203-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M0mPxGpottOEfcucXOR%2F-Mf3Qvxe2AwQZct3Bp1s%2F-Mf3aEraO0bEW2QZqqz7%2F2.png?alt=media\&token=3d8511bd-166b-47ec-8593-9f7248589a33)

4\.       When Cellular settings open, please press on **Advanced options**.

![](https://3922449203-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M0mPxGpottOEfcucXOR%2F-Mf3Qvxe2AwQZct3Bp1s%2F-Mf3aYwpczq1CLtXlt8S%2F3.png?alt=media\&token=6232fcc0-4b6d-432d-9205-33a1ffe2ca9e)

5\.       Press on button **Add an APN**.

![](https://3922449203-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M0mPxGpottOEfcucXOR%2F-Mf3Qvxe2AwQZct3Bp1s%2F-Mf3asE_CmDCvdw4T3Fd%2F4.png?alt=media\&token=b0176b1f-29ca-4943-b531-76a687da39bc)

6\.       When the APN configuration window opens, please enter profile name and APN. Below you can see example showing the **go.mono** being used in a device.

<figure><img src="https://3922449203-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M0mPxGpottOEfcucXOR%2Fuploads%2FUmxZYWKdEAuNpOdirI2D%2Funknown.png?alt=media&amp;token=221fbf0f-effb-4220-a2b4-3cfd53471e77" alt=""><figcaption></figcaption></figure>

7\.       After entering APN and profile name, please scroll down and mark **Apply this profile**. This will set this new APN as a default APN in this device.

![](https://3922449203-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M0mPxGpottOEfcucXOR%2F-Mf3Qvxe2AwQZct3Bp1s%2F-Mf3bcoA96x4AfGCM2NF%2F6.png?alt=media\&token=61752f1f-8658-4dc1-aa08-462a82cc61bc)

8\.       To save our APN settings, please press on **Save** button.

![](https://3922449203-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M0mPxGpottOEfcucXOR%2F-Mf3Qvxe2AwQZct3Bp1s%2F-Mf3bmya3SNQChLNiryA%2F7.png?alt=media\&token=f662b029-f87d-4f98-86cf-fde3b3234146)

9\.       After saving APN, please enable data roaming, by selecting **Roam** under **Data roaming options**

![](https://3922449203-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M0mPxGpottOEfcucXOR%2F-Mf3Qvxe2AwQZct3Bp1s%2F-Mf3dgm1IO7tZXAaOQZq%2F8.png?alt=media\&token=8d07eb22-a597-491f-bd28-f2fad3779c27)

10\.       Now to set this cellular data to be used when there are issues with WiFi, please select When Wi-Fi is poor under Use cellular instead of Wi-Fi.

![](https://3922449203-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M0mPxGpottOEfcucXOR%2F-Mf3Qvxe2AwQZct3Bp1s%2F-Mf3dcDmDA4c-KRr_Xe7%2F9.png?alt=media\&token=6c1cb8ad-d135-4c54-a340-e0e924b20472)

11\.       To apply the settings to the device, please click on **Cellular** to disable it and then again click on **Cellular** to enable it.

![](https://3922449203-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M0mPxGpottOEfcucXOR%2F-Mf3Qvxe2AwQZct3Bp1s%2F-Mf3cgHuILcJucbP367F%2F10.png?alt=media\&token=2b561a44-5038-4873-8ce8-942ec05ab2ca)