CONTENTS

1 Scope
2 Application
2.1 General
2.2 Connectivity
2.3 Protocol architecture
2.4 Operation over restricted transport capabilities
3 Terminal adaption protocol
3.1 Formats
3.2 Procedures
4 Data link control protocol
4.1 Data link control modes of service
4.2 Data link connection verification procedures
5 Protocol specifications for operation over Frame Mode Bearer service
5.1 Physical protocol
5.2 Data link protocol
5.3 Signalling protocol
6 Protocol specifications for operation over Circuit Mode Bearer service
6.1 Physical protocol
6.2 Data link core protocol
6.3 Signalling protocols
7 Application of terminal adaption protocol to terminal adaptor functions
7.1 Clock synchronization
7.2 Asynchronous mode operation
7.3 Protocol sensitive synchronous mode operation
7.4 Bit transparent mode operation
Annex A List of variables
Annex B Alphabetical list of abbreviations used in this Recommendation
Annex C Support of V.42 bis data compression
C.1 Introduction
C.2 Negotiation/Indication of use of the V.42 bis procedure and its parameter values
C.3 Parameters of the data link control entity
C.4 Information fields in XID frames
C.5 Flow control and asynchronous-break handling
Reference
Appendix I TE1 application
I.1 Asynchronous mode operation
I.2 Synchronous mode operation
I.3 Bit transparent mode operation
I.4 TE1 control state variable processing
Appendix II Mapping of interface at R reference point circuits to control state information
II.1 Commonly supported interface leads
II.2 Control procedures
Appendix III Clock synchronization