Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. Two (DSS2) Protocol; B-ISDN User-Network Interface Layer 3 Specification for Basic Call/Bearer Control; 4: Abstract Test Suite (ATS) and Partial Protocol Impl
The present document specifies the network Abstract Test Suite (ATS) for the TB reference point or coincident SB and TB reference point (as defined in ITU-T Recommendation I.413 [9]) 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 Test Suite Structure and Test Purposes (TSSTP) related to this ATS and partial PIXIT proforma. Other parts specify the TSSTP and the ATS and partial PIXIT proforma for the User side of the TB reference point or coincident SB and TB reference point of implementations conforming to EN 300 443-1 [1].