Data communication networks : transmission, signalling and switching, network aspects, maintenance and administrative arrangements: recommendations X.40 - X.181 / International Telecommunication Union
Data communication over the telephone network : series V recommendations / International Telecommunication Union
Data communication networks : services and facilities, interfaces: recommendations X.1 - X.32 / International Telecommunication Union
Data communication networks : open systems interconnection (OSI) model and notation, service definition: recommendations X.200 - X.219 /International Telecommunication Union
Data communication networks : open systems interconnection (OSI) protocol specifications, conformance testing: recommendations X.220 - X.290 /International Telecommunication Union
Data communication networks : interworking between networks, mobile data transmission systems, internetwork management: recommendations X.300 - X.370 /International Telecommunication Union
Data communication networks : message handling systems: recommendations X.400 - X.420 /International Telecommunication Union
Data communication networks : directory: recommendations X.500 - X.521/International Telecommunication Union
Maintenance of international telegraph, phototelegraph and leased circuits : maintenance of the international public telephone network: maintenance of maritime satellite and data transmission systems: recommendations M.800 - M.1375 / International Telecommunication Union
Quality of service in telecommunications / A. P. Oodan, K. E. Ward and A. W. Mullee
IEC web proforum tutorials : addressing key industry topics: ATM fundamentals: broadband access: optical networking: SS7: wireless communications / ed. IEC - International Engineering Consortium
EN 50065-2-1/A1 [documento electrónico] : signalling on low-voltage electrical installations in the frequency range 3khz to 148,5 khz: part 2-1: immunity requirements, for mains communications equipment and systems operating in the range of frequencies 95 kHz to 148,5 kHz and intended for use in residential, commercial and light industrial environments / European Committee for Electrotechnical Standardization