Buoyant aids for swimming instruction - Part 3: safety requirements and test methods for swim seats into which a user is positioned
Edition 2021-10-13

Buoyant aids for swimming instruction - Part 3: Safety requirements and test methods for swim seats into which a user is positioned
Edition 2022-06-29

Integrated Services Digital Network (ISDN); advice of charge: charging information at the end of the call (AOC-E) supplementary service; service description; English version ETS 300180:1992
Edition 1993-09

Private Telecommunication Network (PTN); signalling protocol at the S-reference point; circuit mode basic services; English version ETS 300192:1992
Edition 1993-09

Integrated Services Digital Network (ISDN); Terminal Portability (TP) supplementary service; service description; english version ETS 300053:1991
Edition 1992-09

Private Telecommunication Network (PTN); signalling at the S-reference point; generic keypad protocol for the support of supplementary services; English version ETS 300190:1992
Edition 1993-09

Integrated Services Digital Network (ISDN); Terminal Portability (TP) supplementary service; functional capabilities and information flows; english version ETS 300054:1991
Edition 1992-09

Private Telecommunication Network (PTN); signalling protocol at the S-reference point; identification supplementary services; English version ETS 300191:1992
Edition 1993-09

Private Telecommunication Network (PTN); signalling at the S-reference point; generic feature key management protocol for the control of supplementary services; English version ETS 300240:1993
Edition 1993-12

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 B-channel of the user access, basic and primary rate; English version ETS 300048:1997
Edition 1998-08