GB/T 28506-2012
ActiveTechnical specification for national No.7 signalling system - GSM mobile telephone user part (MTUP)
国内No.7信令方式技术要求 GSM移动电话用户部分（MTUP）
Application Summary AI generated
This standard specifies the technical requirements for the GSM mobile telephone user part (MTUP) within the national No.7 signalling system in China. It is applied in telecommunications networks to define signalling procedures and message formats for call control between mobile switching centers and the fixed network. The standard ensures interoperability and reliable call handling for GSM mobile subscribers connecting to China's domestic telephone infrastructure.
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