CONTENTS

 1     Scope
 2     References
 3     Definitions
 4     Operational requirements
 5     Connecting in text telephone mode including procedures for interworking with the installed base of existing text telephones
        5.1     Automoding originating
        5.2     Automoding answering
        5.3     Automoding monitor mode
 6     Connection in text telephone mode with V.8 and V.8 bis procedures
        6.1     V.8 procedures
                  6.1.1     Originate mode
                  6.1.2     Answer mode
                  6.1.3     V.8 procedure initiated by the answering terminal
                  6.1.4     Enter text mode from voice
        6.2     Simultaneous voice and text telephony (SVT)
        6.3     Connection procedures based on ITU-T V.8 bis
 7     Bibliography
Annex A - 5-bit operational mode
        A.1     Mode of operation
        A.2     Modulation
        A.3     Probe
        A.4     Character conversion
        A.5     Informative usage information
Annex B - DTMF operational mode
        B.1     Mode of operation
        B.2     Character conversion
        B.3     Timing
Annex C - EDT operational mode
        C.1     Mode of operation
        C.2     Modulation
        C.3     Characters in the EDT mode
Annex D - Bell 103 mode
        D.1     Mode of operation
        D.2     Modulation
        D.3     Character code and framing
        D.4     Presentation control
        D.5     Usage conventions
Annex E - V.23 Videotex terminals
        E.1     Minitel terminals
                  E.1.1     Mode of operation
                  E.1.2     Minitel "Dialogue" terminal
                  E.1.3     Minitel "Normal" terminal
        E.2     Prestel terminals
Annex F - V.21 text telephone mode
        F.1     Mode of operation
        F.2     Modulation
        F.3     Channel selection
        F.4     Character code and framing
        F.5     Presentation control
        F.6     Usage conventions
Annex G - V.18 text telephone mode
        G.1     Mode of operation
        G.2     Presentation protocol for V.18 mode
        G.3     Framing and transmission
Appendix I - Representative ordering of automoding
Appendix II - Recommended common procedures for terminals using the V.18 DCE
       II.1     Line status display
       II.2     Connect mode
Appendix III - Specification of V.18 implementation tests
      III.1     Introduction
      III.2     Definitions
      III.3     Summary of tests
                III.3.1     Interworking tests
                III.3.2     Implementation tests
      III.4     Interworking tests description
                III.4.1     Introduction
                III.4.2     Test methodology
                III.4.3     Test cases
      III.5     V.18 implementation tests description
                III.5.1     Introduction
                III.5.2     Test methodology
                III.5.3     Test case identifier numbers
                III.5.4     Test cases