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Unstructured Supplementary Service Data
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Unstructured supplementary service data (USSD) center fully conforms to the international USSD standard and moreover has flexible adaptation capability for those which not specifically defined in the standard. Huawei USSD center supports USSD service between mobile phone and network, for instance, mobile phone sends USSD request to network, network sends USSD request to mobile phone, and network sends USSD notification to mobile phone. The mobile phone can interact multiple times with the USSD application entities and can provide abundant services upon the interactions, such as public information query and location-related services.
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