Private Integrated Services Network (PISN) - Specification, functional models and information flows - Transit counter additional network feature [ISO/IEC 15055 (1997) modified]
Edition 1997-12-01

Private Integrated Services Network (PISN) - Specification, functional models and information flows - Circuit-mode multi-rate bearer services [ISO/IEC 11584 (1996) modified]
Edition 1997-12-01

Integrated Services Digital Network (ISDN) - Signalling System No.7 - Support of Virtual Private Network (VPN) applications with Private network Q reference point Signalling System number 1 (PSS1) information flows - Part 1: Protocol specification [ITU-T Recommendations Q.765.1 and Q.699.1, modified]
Edition 1999-12-01

Integrated Services Digital Network (ISDN) - Signalling System No.7 - Support of Virtual Private Network (VPN) applications with Private network Q reference point Signalling System number 1 (PSS1) information flows - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification
Edition 2000-11-01

Integrated Services Digital Network (ISDN) - Signalling System No.7 - Support of Virtual Private Network (VPN) applications with Private network Q reference point Signalling System number 1 (PSS1) information flows - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification
Edition 2000-11-01

Integrated Services Digital Network (ISDN) - Signalling System No.7 (SS7) - Support of Virtual Private Network (VPN) applications with Private network Q reference point Signalling System number 1 (PSS1) information flows - Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification (incl. Diskette!!!)
Edition 2001-01-01

Private Integrated Services Network (PISN) - Specification, functional model and information flows - Advice of charge supplementary services [ISO/IEC 15049 (1997) modified]
Edition 2003-09-01

Private Integrated Services Network (PISN) - Specification, functional models and information flows - Call interception Additional Network Feature (ANF) [ISO/IEC 15053 (2003), modified]
Edition 2004-03-01

Private Integrated Services Network (PISN) - Specification, functional models and information flows - Recall supplementary service [ISO/IEC 15051 (2003), modified]
Edition 2004-03-01

Private Integrated Services Network (PISN) - Specification, functional models and information flows - Message waiting indication supplementary service [ISO/IEC 15505 (2003), modified]
Edition 2004-03-01