Integrated Service Digital Network (ISDN) - ISDN-Global System for Mobil communications (GSM) Public Land Mobile Network (PLMN) signalling interface - Test specification
Edition 2001-03-01

Terminal Equipment (TE) - Integrated Service Digital Network (ISDN) - Multipoint communications for audiovisual services - Main functionalities and basic requirements for Multipoint Control Units (MCUs)
Edition 2001-06-01

Integrated Services Digital Network (ISDN) - Definition and usage of cause and location in Digital Subscriber Signalling System No. one (DSS1) and Signalling System No. 7 (SS7) ISDN User Part (ISUP) - (ITU-T Recommendation Q.850 (1998) with addendum modified) (V1.3.1)
Edition 2005-09-01

Integrated Services Digital Network (ISDN) - Security tools (SET) procedures - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: protocol specification
Edition 2002-04-01

Telecommunications - Integrated services digital network (ISDN) - Digital subscriber signalling system N o one (DSS1) protocol - Basic call applications enhancement at the "B" service entry point for virtual private network (VPN) applications - Part 1: protocol specification
Edition 2002-04-01

Integrated Services Digital Network (ISDN) Digital Subscriber Signalling No.one (DSS1) protocol - Generic functional protocol for the support of supplementary services at the "b" service entry point for Virtual Private Network (VPN) applications - Part 1: protocol specification
Edition 2002-04-01

Integrated Services Digital Network (ISDN) - Outgoing Call Barring-Fixed (OCB-F) supplementary services - Service description
Edition 2001-05-01

Integrated Services Digital Network (ISDN) - Message Waiting Indication (MWI) supplementary service - Service description
Edition 2001-02-01

Broadband Integrated Services Digital Network (B-ISDN) - Signalling System No.7 - B-ISDN User Part (B-ISUP) Capability Set 1 (CS1) - Basic services [ITU-T Recommendations Q.2761 to Q.2764 (1995), modified]
Edition 2001-04-01

Broadband Integrated Services Digital Network (B-ISDN) - Signalling System No.7 - Transaction Capabilities (TC) version 2 - Test responder specification
Edition 2001-04-01