ETSI - PRETS 300 648
Public Switched Telephone Network (PSTN); Calling Line Identification Presentation (CLIP) Supplementary Service; Service Description
|Publication Date:||1 December 1996|
This European Telecommunication Standard (ETS) defines the stage one of the Calling Line Identification Presentation (CLIP) supplementary service for the Public Switched Telephone Network (PSTN) as provided by European public network operators. Stage one is an overall service description from the user's point of view (see CCITT Recommendation I.130 ), but does not deal with the details of the human interface itself.
This ETS defines the interworking requirements between PSTNs and private networks, PSTNs and Integrated Services Digital Networks (ISDNs), and Public Land Mobile Networks (PLMNs).
Interactions with supplementary services not listed in clause 8 are outside the scope of this ETS.
Charging principles are outside the scope of this ETS.
The CLIP supplementary service provides the called party with the possibility of receiving identification of the calling party.
This ETS is applicable to the ETS containing the subscriber line protocol to support the CLIP supplementary service. Where the text indicates the status of a requirement (i.e. as strict command or prohibition, as authorization leaving freedom, or as a capability or possibility), this shall be reflected in the text of that standard.
Furthermore, conformance to this ETS is met by conforming to the standards containing the subscriber line protocol to support the CLIP supplementary service with the field of application appropriate to the equipment being implemented. Therefore no method of testing is provided for this ETS.