USSD

USSD codes explained

Posted on by Caroline Siñel in GSM/SMS Technology

Unstructured Supplementary Service Data (USSD) codes are codes used to communicate with the network provider or to connect to an application. Most USSD codes start with an asterisk (*) followed by a few digits, then end with a number sign (#). When the <SEND> key is pressed, the USSD code is sent  [...]