CONTENTS

 1     Scope
 2     References
 3     Bibliography
 4     Abbreviations
 5     Guidelines for protocol development
 6     Object Reference Model
 7     Definitions
        7.1     Object and Call Model Definitions
        7.2     Call Model
        7.3     Requests and Responses
                  7.3.1     Definition of Requests and Responses
        7.4     Definition of Signalling Flow Objects
                  7.4.1     Nomenclature
                  7.4.2     Signalling Request and Response Primitives
                  7.4.3     Signalling Objects
 8     Signalling Procedures between the CSF and the BIWF (CBC interface)
        8.1     Successful Establishment
                  8.1.1     Prepare_BNC_Notify
                  8.1.2     Establish_BNC_Notify
                  8.1.3     Reserve_BNC
                  8.1.4     Cut_Through
                  8.1.5     Modification of Bearer Characteristics
                  8.1.6     Tunnel
        8.2     Reuse of idle Bearers
                  8.2.1     Establish BNC
                  8.2.2     Reuse_IDLE
        8.3     Bearer Topology
                  8.3.1     Isolate
                  8.3.2     Join
                  8.3.3     Change Connection Topology
        8.4     Echo Canceller Control
                  8.4.1     Echo Canceller
        8.5     Unsuccessful BNC Establishment
                  8.5.1     Unsuccessful BNC Establishment with notification on BNC establishment
        8.6     Bearer Initiated Release
        8.7     Media Content Insertion
                  8.7.1     Insert Tone
                  8.7.2     Insert Digit
                  8.7.3     Insert Announcement
        8.8     Media Content Detection
                  8.8.1     Detect Digit
        8.9     Cut BNC
                  8.9.1     Release
       8.10     General Procedures
                 8.10.1     BIWF Service Changes
                 8.10.2     CCU Service Change
                 8.10.3     BIWF/Termination Unavailable
                 8.10.4     Audit of BIWF Service Capabilities
 9     Outage and Recovery
        9.1     CCU Initiated
                  9.1.1     CCU outage
                  9.1.2     CCU Recovery
        9.2     BIWF Initiated
                  9.2.1     BIWF outage
                  9.2.2     BIWF RECOVERY