CONTENTS

�1���� Scope
�2���� Field of application
�3���� References
�4���� Definitions
�5���� Overview of communication profile DM-1
�6���� Basic communication requirements for DM-1
������� 6.1���� DTAM functionalities
������� 6.2���� ACSE functionalities
������� 6.3���� Presentation functionalities
������� 6.4���� Session functionalities
�7���� Communication procedure for DM-1
������� 7.1���� General communication procedure
������� 7.2���� Application-association establishment
������� 7.3���� Application-association terminate and abort
������� 7.4���� Data transmission
�8���� Elements of procedure
������� 8.1���� Application-association establishment
������� 8.2���� Application-association termination
������� 8.3���� Application-association abort
������� 8.4���� Data transmission
�9���� Actions of the EH and the LH
������� 9.1���� EH action
������� 9.2���� LH action
������� 9.3���� List of permissible actions on VIA structure elements in both hosts
10���� Object identifier
Annex A � Abstract syntax definition of videotex specific information
������� A.1���� Encoding of user information associated with D-INITIATE services
������� A.2���� Encoding of user information associated with D-ABORT services