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

USSD is a basic session-based service. USSD provides menu-based real-time applications. USSD's full form is Unstructured Supplementary Service Data. USSD sends a string to the …

USSD (Unstructured Supplementary Service Data) USSD is a kind of protocol (Supplementary Service protocol) that is designed for a UE to communicate with the service provider's …

2009年10月17日 · 户可将要呼出的号码通过USSD字串（*101*+4470003 66366#）发到SICAP后，再由SICAP回叫该 用户，并把他接通到“4471000366366”号码上。 目前基于USSD业务的 …

USSD (Unstructured Supplementary Service Data) is a Global System for Mobile Communications protocol that is used to send text messages. USSD is similar to Short …

2023年11月9日 · ussd与短消息业务（sms）都是通过网络的信令通道传递的。 不同之处在于短消息属于存储转发方式， USSD 则属于面向对话方式。 当用户访问 USSD 业务时，该对话通路 …

2023年2月7日 · 已以下指令为例 已知发送 USSD 的格式为：Send USSD aaaxxxxxxxxxxxx*yyyyyyy# ;Fetch:==:SEND USSD SEND 801200001F ASSERT …

USSD codes are communication protocols used across GSM cellular networks, allowing instant interaction. They are crucial in regions with low internet connectivity, providing access to digital …

The USSD operations are defined in TS 24.090 [10]. The UM field of an USSD String contains the Response Packet. The Response Packet shall be coded as the generic Response Packet …

2023年12月19日 · Unstructured Supplementary Service Data (USSD) is a protocol used in telecommunications to send text messages between a mobile phone and an application …