Normas ISO

Information technology -- International Standardized Profiles TB, TC, TD and TE -- Connection-mode Transport Service over connection-mode Network Service-- Part 22: Subnetwork-type dependent requirements for Network Layer and Data Link Layer for ISDN B-channel X.25 DTE to DCE operation

Information technology -- International Standardized Profiles TB, TC, TD and TE -- Connection-mode Transport Service over connection-mode Network Service-- Part 23: Subnetwork-type dependent requirements for Network Layer and Data Link Layer for Data Transfer concerning a packet switched mode Integrated Services Digital Network using virtual calls: B-channel access case

Information technology -- International Standardized Profiles TB, TC, TD and TE -- Connection-mode Transport Service over connection-mode Network Service-- Part 24: Subnetwork-type dependent requirements for Network Layer and Data Link Layer for Data Transfer concerning a packet switched mode Integrated Services Digital Network using virtual calls: D-channel access case

Information technology -- International Standardized Profiles TB, TC, TD and TE -- Connection-mode Transport Service over connection-mode Network Service-- Part 25: Subnetwork-type dependent requirements for Q.931 circuit-switched operation

Information technology -- International Standardized Profiles TB, TC, TD and TE -- Connection-mode Transport Service over connection-mode Network Service-- Part 26: Subnetwork-type dependent requirements for Network Layer for Call Control procedures concerning the outgoing call of a packet switched mode Integrated Services Digital Network in case B using virtual calls

Information technology -- International Standardized Profiles TB, TC, TD and TE -- Connection-mode Transport Service over connection-mode Network Service-- Part 27: Subnetwork-type dependent requirements for Network Layer for Call Control procedures concerning the incoming call of a packet switched mode Integrated Services Digital Network in case B using virtual calls