CONTENTS

 1     Introduction and scope
        1.1     Facsimile terminals
        1.2     Facsimile DCE
        1.3     Scope
        1.4     Overview
 2     Normative references
 3     Definitions
 4     Abbreviations
 5     Facsimile DTE–DCE interchange circuits
        5.1     DTE–DCE communication link data rates
        5.2     Asynchronous to synchronous conversion
        5.3     Flow control
        5.4     Serial data interchange circuits
 6     Autodialler services
        6.1     Command syntax
        6.2     Command execution
        6.3     Response syntax
        6.4     Capabilities identification and control
        6.5     Call answering
        6.6     Call origination
        6.7     Call termination
        6.8     Result codes
        6.9     Serial port flow control
       6.10     Serial port speed control
       6.11     Transparent data commands
 7     Facsimile Service Class 1
        7.1     Connection establishment
        7.2     Waiting and silence detection
        7.3     Data transfer
        7.4     HDLC framing, transparency, and error detection
        7.5     Facsimile carrier error message response
 8     Service Class 1 commands and responses
        8.1     Command summary
        8.2     Capabilities identification and control
        8.3     Service Class 1 action commands
        8.4     Service Class 1 result codes
        8.5     Service Class 1 parameters
Annex  A  –  Interworking with existing facsimile  DTE
Appendix  I  –  Service Class 1 example sessions
Appendix  II  –  Recommendations for DTE compatibility
       II.1     Clarification of switching from HDLC reception to transmission
       II.2     Clarification of switching transmit modulation schemes