GB/T 17154.1-1997
ActiveISDN user-network interface layer 3 specification and testing method for basic call control--Part 1:Layer 3 specification for basic call control
ISDN用户-网络接口第三层基本呼叫控制技术规范及测试方法 第1部分:第三层基本呼叫控制技术规范
Application Summary AI generated
This standard specifies the layer 3 signaling protocol for basic call control between user equipment and the ISDN network, defining message formats, procedures, and state transitions for circuit-switched call setup and teardown. It is applied in the design, development, and testing of ISDN terminal equipment, network interfaces, and switching systems to ensure interoperability in telecommunications networks. The standard is used by engineers and testers in China to verify compliance with ITU-T Q.931-based call control requirements for digital voice and data services.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.