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ČSN is a protected designation of Czech national technical standards.
Terminal Equipment (TE). International Videotex interworking
Standard published on 1.11.1994
Selected format:Terminal Equipment (TE). International Interworking between a terminal and host
Standard published on 1.11.1994
Selected format:Terminal Equipment (TE). International Videotex interworking between gateways
Standard published on 1.6.1995
Selected format:Integrated Services Digital Network (ISDN). Facsimile group 4 class 1 on the ISDN. End-to-end protocols
Standard published on 1.6.1996
Selected format:Public Switched Telephone Network (PSTN). Basic Category I and Category II specifications for modems standardized for use on the PSTN
Standard published on 1.2.1997
Selected format:
WITHDRAWN published on 1.6.1995
Selected format:Attachments to the Public Switched Telephone Network (PSTN). Category II attachment requirements for 300 bit/s duplex modems standardized for use on the PSTN
Standard published on 1.6.1995
Selected format:Public Switched Telephone Network (PSTN) - Category II specification for 300 bit/s duplex modems standardized for use on the PSTN
Standard published on 1.9.1998
Selected format:Public Switched Telephone Network (PSTN). Category II specification for 1 200 bits per second duplex modems standardized for use on the PSTN
Standard published on 1.2.1997
Selected format:
WITHDRAWN published on 1.6.1995
Selected format:Latest update: 2025-08-18 (Number of items: 2 212 161)
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