BS ISO/IEC 13241:1997

Information technology. Telecommunications and information exchange between systems. Private integrated services network. Inter-exchange signalling protocol. Route restriction class additional network feature|Data processing, Information exchange, Telecommunication, Communication networks, Computer networks, Telephone networks, Conformity, Signals, ISDN, Private networks PICS, Network interconnection, Protocols Click the banner to get it at ONLY: GBP116.00