Integrated Services Digital Network (ISDN) - Connected Line Identification Presentation (COLP) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user
Edition 1998-09-01

Integrated Services Digital Network (ISDN) - Connected Line Identification Presentation (COLP) 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 (incl. Diskette!!!)
Edition 1998-10-01

Integrated Services Digital Network (ISDN) - Connected Line Identification Presentation (COLP) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 5: Test Suite Structure and Test Purposes (TSS&TP) specification for the network
Edition 1998-09-01

Integrated Services Digital Network (ISDN) - Connected Line Identification Presentation (COLP) 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 (incl. Diskette!!!)
Edition 2000-01-01

Access and Terminals (AT) - 64 kbit/s digital unrestricted leased line with octet integrity (D64U) - Network interface presentation
Edition 2001-11-01

Integrated Services Digital Network (ISDN) - Signalling System No.7 (SS7) - ISDN User Part (ISUP) version 4 for the international interface - Part 3: Calling Line Identification Presentation (CLIP) supplementary service [ITU-T Recommendation Q.731, clause 3 (1993), modified]
Edition 2001-11-01

Integrated Services Digital Network (ISDN) - Signalling System No.7 (SS7) - ISDN User Part (ISUP) version 4 for the international interface - Part 5: Connected Line Identification Presentation (COLP) supplementary service [ITU-T Recommendation Q.731, clause 5 (1993), modified]
Edition 2001-11-01

Access and Terminals (AT) - 2 048 kbit/s digital unstructured and structured leased lines (D2048U and D2048S) - Network interface presentation
Edition 2001-11-01

Access and Terminals (AT) - Ordinary quality voice bandwidth 2-wire analogue leased line (A2O) - Connection characteristics and network interface presentation
Edition 2001-11-01

Access and Terminals (AT) - Special quality voice bandwidth 2-wire analogue leased line (A2S) - Connection characteristics and network interface presentation
Edition 2001-11-01