Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Completion of Calls on No Reply (CCNR) supplementary service - Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user (incl. Diskette!!!)
Edition 2002-07-01

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Completion of Calls on No Reply (CCNR) supplementary service - Part 5: Test Suite Structure and Test Purposes (TSS&TP) specification for the network
Edition 2002-07-01

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Completion of Calls on No Reply (CCNR) supplementary service - Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network (incl. Diskette!!!)
Edition 2002-07-01

Integrated Services Digital Network (ISDN) - Completion of Calls on No Reply (CCNR) supplementary service - Service description
Edition 1999-01-01

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
Edition 2000-12-01

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Call completion supplementary service for the VPN "b" service entry point - Part 2: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification (incl. Diskette!!!)
Edition 2002-04-01

Corporate telecommunication Networks (CN) - Signalling interworking between QSIG and H.323 - Call Completion supplementary services [ISO/IEC 21991 (2002) modified]
Edition 2003-05-01

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 12: Supplementary services stage 3 - Sub-part 13: Call Completion to Busy Subscriber (CCBS) (ETSI EN 300392-12-13 V1.2.1 (2012-03))
Edition 2012-05-01

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 12: Supplementary services stage 3 - Sub-part 23: Call Completion on No Reply (CCNR) (ETSI EN 300392-12-23 V1.2.1 (2012-04))
Edition 2012-06-01

Oil and gas industries including lower carbon energy - Completion fluids and materials - Part 8: Measurement of properties of coated proppants used in hydraulic fracturing