Unstructured Supplementary Service Data (USSD), sometimes referred to as "quick codes" or "feature codes", is a communications protocol used by GSM cellular telephones to …

2022年8月14日 · You can access the hidden functions on your smartphone via the so-called USSD or GSM codes. Using a short string of numbers and characters, you can, for example, …

USSD可被用于提供独立的拨叫服务，如 回拨 （英语：Callback (telecommunications)） 服务（减少漫游时的通话费用）、增强移动营销功能、交互式数据服务。 部分移动运营商使用USSD提 …

2025年1月17日 · Find all USSD and secret dialer codes for Android devices. Being open-source, the Android OS has a range of easter eggs and dialer codes that let you unlock hidden …

2025年1月17日 · USSD codes are numeric characters paired with special characters like asterisk (*) and hash (#). With these secret codes, you can troubleshoot issues, access service menus, …

2024年12月12日 · USSD codes, or Unstructured Supplementary Service Data codes, are a form of communication protocol used by mobile phones to interact directly with their network …

2024年10月11日 · USSD stands for Unstructured Supplementary Service Data, which might sound complicated, but it’s simply a quick access code you enter on your phone’s dialer. …

2022年4月13日 · USSD (Unstructured Supplementary Service Data) is referred to as “Quick Codes” or “Feature Codes,” a protocol that allows you to send code across the network. It …

2024年9月2日 · USSD代码，即非结构化补充服务数据，是一种基于GSM网络的交互式数据业务。 用户只需在手机键盘上输入特定的代码，然后按下拨号键，即可向网络发送指令，并立即收到 …

2024年4月27日 · These quick codes help various smartphone models like iPhone or Android phones with various essential functions, from checking our data balance to unlocking secret …