确定一组管理服务，这些服务源于ETSI/CCITT工作以及PTN特定服务，适用于专用综合服务网络。还需要确定一组支持这些服务的管理功能。

To identify a set of management services, derived from ETSI/CCITT work plus PTN-specific services, applicable to a private integrated services network. Also to identify a set of management functions to support these services.