The present document 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 of
implementations conforming to the stage three standard for the Security Tools (SET) procedures for the pan-European
Integrated Services Digital Network (ISDN) by means of the Digital Subscriber Signalling System No. one (DSS1)
protocol, see EN 301 002-1 [1].
EN 301 002-5 [3] specifies the Test Suite Structure and Test Purposes (TSS&TP) related to this ATS and partial PIXIT
proforma specification. Other parts specify the TSS&TP and the ATS and partial PIXIT proforma for the User side of
the T reference point or coincident S and T reference point of implementations conforming to EN 301 002-1 [1].