Summary:
- USSD (Unstructured Supplementary Service Data) is a communication protocol used by mobile phones to communicate with a service provider's computers.
- USSD is commonly used for mobile banking, prepaid airtime top-ups, and other mobile services that require real-time communication between the phone and the service provider.
- USSD is a simple and efficient way for mobile users to access services without the need for a mobile internet connection, making it particularly useful in areas with limited or unreliable internet access.