This sixth part of ETS 300 286 specifies the Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma for the Network side of the T reference point or coincident S and T reference point (as defined in ITU-T Recommendation I.411 [11]) of implementations conforming to the stage three standard for the User-to-User Signalling (UUS) supplementary service for the pan-European Integrated Services Digital Network (ISDN) by means of the Digital Subscriber Signalling System No. one (DSS1) protocol, EN 300 286-1 [3].
IN_DEVELOPMENT
prSSH ETS 300 286-6:1998 ed.1
40.20
DIS ballot initiated: 12 weeks
Feb 9, 2026
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