Unstructured Supplementary Service Data (USSD), sometimes referred to as “Quick Codes” or “Feature codes”, is a communications protocol used by GSM cellular telephones to communicate with the mobile network operator’s computers.
What is USSD and how does it work?
USSD (Unstructured Supplementary Service Data) is a Global System for Mobile(GSM) communication technology that is used to send text between a mobile phone and an application program in the network. USSD is similar to Short Messaging Service (SMS), but,unlike SMS, USSD transactions occur during the session only.
Does Ussd use data?
USSD (Unstructured Supplementary Service Data) is a protocol used by GSM cellphones to communicate with their service provider’s computers via text messages. We commonly use it to check mobile airtime and data balance enquiries, or to receive one-time passwords or PIN codes, among many applications.18 Jun 2018
How do I use USSD?
USSD is a technology platform through which information can be transmitted through a GSM network on a basic phone. This service will be available on all mobile phones with SMS facility. To use USSD mobile banking, users will have to simply dial *99# and use the interactive menu.
What is my MMI code?
Every code that you enter over your phones keypad that contains asterisk (*) or hash (#) characters is an MMI code. MMI stands for Man-Machine-Interface. Even though most of these MMI codes look pretty similar, they fall into different groups with completely different actions.