This Standard specifies the supplementary services Calling Name Identification Presentation (SS-CNIP)@ Connected Name Identification Presentation (SS-CONP) and Calling/Connected Name Identification Restriction (SS-CNIR)@ which are applicable to various basic services supported by Private Telecommunication Networks (PTNs). Basic services are specified in ETS 300 171. Calling Name Identification Presentation (SS-CNIP) is a supplementary service which is offered to the called user and which provides the name of the calling user (calling party name) to the called user. Connected Name Identification Presentation (SS-CONP) is a supplementary service which is offered to the calling user and which provides to the calling user the following: - the name of the user who answers the call (connected party name)@ - optionally the name of the alerting user (called party name)@ - optionally the name of the called user who cannot be reached (busy party name). Calling/connected Name Identification Restriction (SS-CNIR) is a supplementary service which is offered to a user to restrict presentation of that user's name to another user. Provision of a user's name to the PTN is outside the scope of this Standard. Service specifications are produced in three stages@ according to the method described in ENV 41005. This Standard contains the stage 1 and 2 specifications of the Name Identification supplementary services. The stage 1 specifications specify the supplementary services as seen by users of PTNs. The stage 2 specifications identify the functional entities involved in the supplementary services and the information flows between them.