Rec. ITU-T Q.933 (03/1993) DIGITAL SUBSCRIBER SIGNALLING SYSTEM No. 1 (DSS 1) - SIGNALLING SPECIFICATION FOR FRAME MODE ...
FOREWORD
CONTENTS
1 Purpose, scope and structure
    1.1 Purpose
    1.2 Scope
    1.3 Structure
2 Overview of frame mode connection control
    2.1 Frame mode calls
3 Message functional definitions and content
    3.1 Messages for frame mode connection control
    3.2 Messages used with global call reference
4 General message format and information element coding
    4.1 Overview
    4.2 Protocol discriminator
    4.3 Call reference
    4.4 Message type
    4.5 Other information elements
5 Frame mode call control procedures
    5.1 Outgoing call
    5.2 Incoming call
    5.3 Frame mode data transfer phase protocol
    5.4 Call clearing
    5.5 Restart procedures
    5.6 Call collision
    5.7 Handling of error conditions
    5.8 List of system parameters
Annex A Additional procedures for permanent virtual connections (PVCs) using unnumbered information frames
A.1 Messages used for PVC status
A.2 Information elements
A.3 Information elements
A.4 Procedures
A.5 Error conditions
A.6 Optional bidirectional network procedures
A.7 System parameters
Annex B Additional procedures for permanent frame mode connection using acknowledged mode of operation
B.1 Messages used for PVC status
B.2 Status change procedure
B.3 Status request procedure
B.4 Connectivity verification procedure
B.5 Operation on multipoint access arrangement
Annex C Provision of OSI connection mode network services (NC-establishment and release phases)
C.1 Definitions
C.2 Overview
C.3 Network connection establishment phase
C.4 Network connection release phase
Appendix I Window size for a data link layer protocol
References