Unstructured Supplementary Service Data
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Huawei USSD fully complies with the international USSD standard, and also adapts to the protocols, processes, formats and others that are not specified in the standard. It supports the USSD service to apply to mobile phones and the network. For example, a mobile phone sends a USSD request to the network, then the network sends a USSD notification to a mobile phone. A mobile phone can interact multiple times with USSD application entities and provide abundant services upon the interaction, such as the public information query and location-related service.
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