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This Standard specifies the method for specification of basic and supplementary services provided by a Private Telecommunication Network (PTN).
It applies to any other PTN-related standard, such as:
- stage 1 and stage 2 specifications of basic and supplementary services;
- specifications of basic and supplementary service signalling protocols, at any relevant PTN reference point, in the context of any scenarios for the interconnection of PTN exchanges (PTNXs), and in the context of interworking with other networks.