Integrated Services Digital Network (ISDN) - Signalling System No. 7 - ISDN User Part (ISUP) version 2 for the international interface - Part 32: Test Suite Structure and Test Purposes (TSS&TP) specification for basic services [ITU-T Recommendation Q.784.2 (1997), clauses 2, 3 and 6 to 8, modified]; English version ETS 300356-32:1997