Integrated Services Digital Network (ISDN); Freephone (FPH) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification
Integrated Services Digital Network (ISDN); Freephone (FPH) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user
Integrated Services Digital Network (ISDN); Freephone (FPH) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user
Integrated Services Digital Network (ISDN); Freephone (FPH) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 5: Test Suite Structure and Test Purposes (TSS&TP) specification for the network
Integrated Services Digital Network (ISDN); Freephone (FPH) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network
Private Integrated Services Network (PISN); Specification, functional model and information flows; Name identification supplementary services [ISO/IEC 13864 (1995) modified]
Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Name identification supplementary service [ISO/IEC 13868 (2003), modified]
Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Generic functional protocol for the support of supplementary services [ISO/IEC 11582 (2002) modified]
Private Integrated Services Network (PISN); Specification, functional models and information flows; Call diversion supplementary service [ISO/IEC 13872 (2003), modified]
Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Call diversion supplementary service [ISO/IEC 13873 (2003), modified]
Private Integrated Services Network (PISN); Specification, functional model and information flows; Path replacement additional network feature [ISO/IEC 13863 (1998) modified]
Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Path replacement Additional Network Feature (ANF) [ISO/IEC 13874 (2003), modified]
53,361 distinct reference strings indexed from official source snapshots. Includes earlier editions. The index and publisher collections have different coverage. See sources and coverage.