Access and Terminals (AT) - Analogue access to the Public Switched Telephone Network (PSTN) - Subscriber line protocol over the local loop for display (and related) services - Part 3: Data link message and parameter codings
Edition 2001-04-01

Integrated Services Digital Network (ISDN) - Message Waiting Indication (MWI) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification (incl. Diskette!!!)
Edition 1998-10-01

Integrated Services Digital Network (ISDN) - Message Waiting Indication (MWI) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification (incl. Diskette!!!)
Edition 1998-10-01

Integrated Services Digital Network (ISDN) - Message Waiting Indication (MWI) 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 1999-01-01

Integrated Services Digital Network (ISDN) - Message Waiting Indicating (MWI) 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 2000-01-01

Integrated Services Digital Network (ISDN) - Message Waiting Indication (MWI) 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 1999-01-01

Integrated Services Digital Network (ISDN) - Message Waiting Indication (MWI) 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

Digital cellular telecommunications system (Phase 2+) - Short Message Service Cell Broadcast (SMSCB) support on the mobile radio interface (GSM 04.12 version 7.0.1 Release 1998)
Edition 2000-04-01

Broadband Integrated Services Digital Network (B-ISDN) - Signalling System No.7 - Message Transfer Part (MTP) level 3 functions and messages to support international interconnection - Part 1: Protocol specification [ITU-T Recommendation Q.2210 (1996), mod
Edition 1998-07-01

Broadband Integrated Services Digital Network (B-ISDN) - Signalling System No.7 - Message Transfer Part (MTP) level 3 functions and messages to support international interconnection - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification
Edition 2000-03-01