This Recommendation specifies the usage of all protocols and supplementary services up to and including layer 3 for syntax-based Videotex terminal equipment in the ISDN. The scope of this Recommendation is limited to virtual circuits using the three diffe
ITU-T T.103-1993 history
1993ITU-T T.103-1993 Syntax-Based Videotex End-to-End Protocols for the Packet Mode ISDN - Telematic Services Terminal Equipments and Protocols for Telematic Services (Study Group VIII) 68 pp