Users Manual

24.11 SIM Toolkit

The SIM Toolkit, accessible via Advanced > Misc Settings > SIM Toolkit, supports two

functionalities, USSD and SMS.

USSD

Unstructured Supplementary Service Data (USSD) is a protocol used by mobile phones to

communicate with their service provider’s computers. One of the most common uses is to query

the available balance.

Enter your USSD code under the USSD Code text field and click Submit.

You will receive a confirmation. To check the SMS response, click Get.

After a few minutes you will receive a response to your USSD code

https://www.peplink.com

182