Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network; Inter-exchange signalling protocol; Call Priority Interruption and Call Priority Interruption Protection supplementary services
Edition 2003-04

Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network; Inter-exchange signalling protocol; Private User Mobility (PUM); Registration supplementary service
Edition 2003-04

Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network; Inter-exchange signalling protocol; Single Step Call Transfer Supplementary Service
Edition 2003-04

Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network; Inter-exchange signalling protocol; Private User Mobility (PUM); Call handling additional network features
Edition 2003-04

Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network; Inter-exchange signalling protocol; Wireless terminal location registration supplementary service and wireless terminal information exchange additional network feature
Edition 2003-04

Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Message centre monitoring and mailbox identification supplementary services
Edition 2004-05

Integrated Services Digital Network (ISDN) - Specification of the Remote Frame Handler Interface (RFHI); English version ETS 300458:1995
Edition 1996-04

Space engineering - Communications; English version EN 16603-50:2022
Edition 2022-11

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

Integrated Services Digital Network (ISDN); CCITT signalling system no. 7; Transaction Capabilities Application Part (TCAP); English version ETS 300134:1992
Edition 1993-07