Integrated Services Digital Network (ISDN) - Freephone (FPH) supplementary service - Service description; English version ETS 300208:1996
Edition 1996-10

Broadband Integrated Services Digital Network (B-ISDN) - Broadband Virtual Path Service (BVPS) - Part 2: BVPS for Reserved communications (BVPS-R); English version ETS 300455-2:1995
Edition 1996-02

Integrated Services Digital Network (ISDN) - ISDN Packet Mode Bearer Services (PMBS) - ISDN Virtual Call (VC) and Permanent Virtual Call (PVC) bearer services provided by the D-channel of the user access; basic and primary rate; English version ETS 300049:1997
Edition 1998-08

Integrated Services Digital Network (ISDN) - Call Forwarding Unconditional (CFU) supplementary service - Service description; English version ETS 300200:1994
Edition 1995-05

Integrated Services Digital Network (ISDN) - Call Forwarding Busy (CFB) supplementary service - Functional capabilities and information flows; English version ETS 300203:1994
Edition 1995-06

Integrated Services Digital Network (ISDN) - Call Forwarding Unconditional (CFU) supplementary service - Functional capabilities and information flows; English version ETS 300204:1994
Edition 1995-06

Integrated Services Digital Network (ISDN) - Call Deflection (CD) supplementary service - Functional capabilities and information flows; English version ETS 300206:1994
Edition 1995-06

Integrated Services Digital Network (ISDN) - Completion of Calls to Busy Subscriber (CCBS) supplementary service - Functional capabilities and information flows; English version ETS 300358:1995
Edition 1996-04

Integrated Services Digital Network (ISDN); Advice of Charge (AOC) supplementary service; functional capabilities and information flows; English version ETS 300181:1993
Edition 1994-01

Integrated Services Digital Network (ISDN) - Videoconference teleservice - Service description; English version ETS 300678:1996
Edition 1997-11