Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Three-Party (3PTY) supplementary service - Part 6: abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network (V1.4.1)
Edition 2006-12-01

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Close User Group (CUG) supplementary service - Part 6: abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network (V1.5.1)
Edition 2006-12-01

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Close User Group (CUG) supplementary service - Part 5: Test Suite Structure and Test Purposes (TSS&TP) specification for the network (V3.1.1)
Edition 2006-12-01

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. (DSS1) protocol - Call Waiting (CW) supplementary service - Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network (V.1.4.1)
Edition 2006-12-01

Telecommunications - Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Call completion supplementary service for the VPN b service entry point - Part 1: test Suite Structure and Test Purposes (TSS&TP) specification (V1.1.4)
Edition 2005-12-01

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) and Signalling System No. 7 (SS7) protocols - Call Forwarding on Not Reachable (CFNRc) supplementary service for Cordless Terminal Mobility (CTM) phase 1 - Part 1: protocol specification
Edition 2000-06-01

Integrated Services Digital Network (ISDN) Digital Subscriber Signalling No.one (DSS1) protocol - Generic functional protocol for the support of supplementary services at the "b" service entry point for Virtual Private Network (VPN) applications - Part 1: protocol specification
Edition 2002-04-01