标准摘要
[中文适用范围]： 包含 PISN 同步所需的要求。 建立设计 PISN 同步计划所需的技术标准。 [外文原描述]： Contains requirements necessary for the synchronization of PISNs. Establishes technical criteria necessary in the design of a synchronization plan for a PISN.
英文名称Information technology - Telecommunications and information exchange between systems - Synchronization methods and technical requirements for Private Integrated Services Networks