CONTENTS

�1���� Scope
�2���� Normative references
�3���� Definitions
�4���� Abbreviations
�5���� DSVD system
������� 5.1���� System overview
������� 5.2���� Supervisory and control function
������� 5.3���� Data processing function
������� 5.4���� Voice processing function
������� 5.5���� Control Entity (CE)
������� 5.6���� Multiplex function
������� 5.7���� Modem
������� 5.8���� Summary of requirements and options
�6���� Operating procedures
������� 6.1���� DSVD mode initiation
������� 6.2���� DSVD mode operation
������� 6.3���� End of DSVD mode
�7���� Interfaces
������� 7.1���� DTE-DCE data interface
������� 7.2���� DTE-DCE control
������� 7.3���� Voice interface
������� 7.4���� Combined data/voice interface
�8���� System implementation requirements
�9���� Interworking
Annex A� �� UNERM tunnelling procedures
Appendix I� �� Relationship with V.42 LAPM operation
������� I.1���� Differences between V.76 and V.42 LAPM
������� I.2���� Interworking procedures
Appendix II� �� Alternatives for support of T.120-based audiographic conferencing using Recommendation V.70
������ II.1���� PSTN basic profile
������ II.2���� Alternative A: PSTN profile-based on Recommendation V.70 with UNERM tunnelling
������ II.3���� Alternative B: PSTN profile-based on Recommendation V.70 using V.76 channels
������ II.4���� Alternative C: PSTN profile-based on Recommendation V.70 using V.75 CE primitives
Bibliography