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) - Digital subscriber signalling system No. 1 (DSS1) and signalling system No. 7 (SS7) protocols - Call forwarding on not reachable (CFNRc) supplementary service for cordless terminal mobility (CTM) phase - Part 3: test suite structure and test purpose (TSS&TP) specification for the user (V1.1.1)
Edition 2014-03-19

Integrated Services Digital Network (ISDN). Explicit Call Transfer (ECT) supplementary service. Digital Subscriber Signalling System Number one (DSS1) protocol. Part 1: protocol specification
Edition 1999-03-01

Integrated Services Digital Network (ISDN). Conference call, add-on (CONF) supplementary service. Digital subscriber signalling system number one (DSS1) protocol. Part 1: protocol specification
Edition 1996-10-01

Integrated Services Digital Network (ISDN). Diversion supplementary services. Digital Subscriber Signalling System number one (DSS1) protocol. Part 1: protocol specification
Edition 1997-07-01

Integrated Services Digital Network (ISDN). Freephone (FPH) supplementary service. Digital substriber Signalling System n o one (DSS) protocol. Part 1: protocol specification
Edition 1997-12-01

Integrated Services Digital Network (ISDN). Telephony 7 kHz and videotelephony teleservices. Digital subscriber signalling system no One (DSS1) protocol. Part 1: protocol specification
Edition 1996-11-01

Integrated Services Digital Network (ISDN). Completion of Calls to Busy Subscriber (CCBS) supplementary service. Digital Subscriber Signalling System no 1 (DSS1) protocol. Part 1: protocol specification
Edition 1998-10-01

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System 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 (Endorsement of the English version EN 301061-1 V 1.2.2 (1998-04) as German standard)
Edition 2000-01