Short codes for Android smartphones can be used in several way, from pulling up information about the device, to communicating with the network service provider, as well as quickly accessing functions that may be otherwise hidden from the user. They are divided into two types — Man Machine Interface (MMI) codes, which are enabled by the phone’s maker to get information about the device (or diagnose or configure it), and Unstructured Supplementary Service Data (USSD), which communicate with the
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