Attachments to the public switched telephone network (PSTN) : category II attachment requirements for 2400 bits per second duplex modems standardized for use on the PSTN: NET 23 / European Conference of Postal and Telecommunications Administrations
Attachments to the public switched telephone network (PSTN) : category II attachment requirements for 1200 bits per second half duplex and 1200/75 bits per second asymmetrical duplex modems standardized for use on the PSTN: NET 24 / European Conference of Postal and Telecommunications Administrations
Integrated services digital network (ISDN) : 3.1 kHz telephony teleservice: attachment requirements for handset terminals: NET 33 / European Conference of Postal and Telecommunications Administrations
Final acts of the CEPT T-DAB planning meeting : special arrangement: Final protocol: resolution: supplementary information / European Conference of Postal and Telecommunications Administrations