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ČSN is a protected designation of Czech national technical standards.
Integrated Services Digital Network (ISDN). Specifiacation of the Packet Handler Access Point Interface (PHI)
Standard published on 1.11.1994
Selected format:Integrated Services Digital Network (ISDN) - Specification of the Packet Handler access point Interface (PHI)
Standard published on 1.5.1999
Selected format:Integrated Services Digital Network (ISDN). Routing in support of ISUP version 1 services
Standard published on 1.6.1995
Selected format:Integrated Services Digital Network (ISDN). Circuit-mode 64 kbit/s unrestricted 8 kHz structured bearer service category. Service description
Standard published on 1.11.1994
Selected format:Integrated Services Digital Network (ISDN). Circuit-mode 64 kbit/s unrestricted 8 kHz structured bearer service category usable for speech information transfer. Service description
Standard published on 1.10.1994
Selected format:Integrated Services Digital Network (ISDN). Circuit-mode 64 kbit/s unrestricted 8 kHz structured service bearer category usable for 3,1 kHz audio information transfer. Service description
Standard published on 1.11.1994
Selected format:Integrated Services Digital Network (ISDN). Telephony 3,1 kHz teleservice. Service description
Standard published on 1.10.1994
Selected format:Integrated Services Digital Network (ISDN). Service requirements for Telefax Group 4
Standard published on 1.11.1994
Selected format:Integrated Services Digital Network (ISDN). Malicious Call Identification (MCID) supplementary service. Service description
Standard published on 1.11.1994
Selected format:Digitální síť integrovaných služeb (ISDN) - Identifikace zlomyslného volání (MCID) - Doplňková služba - Popis služby.
Change published on 1.1.1999
Selected format:Latest update: 2025-12-20 (Number of items: 2 252 706)
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