The present document specifies the network Test Suite Structure and Test Purposes (TSS&TP) for the TB reference
point or coincident SB and TB reference point (as defined in ITU-T Recommendation I.413 [5]) of implementations
conforming to the standards for the signalling user-network layer 3 specification for basic call/bearer control of the
Digital Subscriber Signalling System No. two (DSS2) protocol for the pan-European Broadband Integrated Services
Digital Network (B-ISDN), EN 300 443-1 [1].
A further part of the present document specifies the Abstract Test Suite (ATS) and partial Protocol Implementation
eXtra Information for Testing (PIXIT) proforma based on the present document.