This third part of EN 301 065 specifies the Test Suite Structure and Test Purposes (TSS&TP) for the User side of the
T reference point or coincident S and T reference point (as defined in ITU-T Recommendation I.411 [7]) of
implementations conforming to the stage three standard for the Completion of Calls on No Reply (CCNR)
supplementary service for the pan-European Integrated Services Digital Network (ISDN) by means of the Digital
Subscriber Signalling System No. one (DSS1) protocol, EN 301 065-1 [1].
A further part of the present document specifies the Abstract Test Suite (ATS) and partial PIXIT proforma based on the
present document. Other parts specify the TSS&TP and the ATS and partial PIXIT proforma for the Network side of the
T reference point or coincident S and T reference point of implementations conforming to EN 301 065-1 [1].