CONTENTS

 1     Scope
 2     References
 3     Abbreviations
 4     Definitions
 5     Functional Reference Model
 6     General Requirements
        6.1     Service Requirements
        6.2     CS-1 Requirements Applicable to CS-2
        6.3     Additional Requirements in CS-2
        6.4     Quality of Service provisioning with BICC
        6.5     Guidelines for protocol development
 7     Detailed Requirements
        7.1     General
        7.2     Addressing
                  7.2.1     Call Control
                  7.2.2     BNC Control
                  7.2.3     Call control and Bearer Control Interactions
        7.3     Routing
                  7.3.1     Call Control
                  7.3.2     BIWF Selection Control
                  7.3.3     BNC Control
        7.4     Symmetry of call and bearer control
                  7.4.1     Call Control
                  7.4.2     BNC Control
        7.5     Connectionless BNC Types
        7.6     Bearer Control Tunnelling
                  7.6.1     General requirements
                  7.6.2     CBC protocol requirements
                  7.6.3     BICC protocol requirements
        7.7     Connection configuration
                  7.7.1     Connection Types supported
                  7.7.2     Conference services
                  7.7.3     Multi‑Stream Support
                  7.7.4     Connection Modification
        7.8     Essential features of the underlying signalling transport
        7.9     Flow control
       7.10     Independence from underlying signalling transport
       7.11     Concatenation
       7.12     Contention resolution
       7.13     Error reporting
       7.14     Unrecoverable failures
       7.15     Forward and backward compatibility
       7.16     Decomposition of Serving Nodes
       7.17     Performance Requirements
       7.18     Codec Negotiation
       7.19     Codec Modification
       7.20     Bearer Redirection
       7.21     Call Control support for Transfer of Out of Band Signals.
 8     Signalling Procedures.
        8.1     Successful Call Set up
                  8.1.1     Call Establishment
                  8.1.2     Bearer establishment
        8.2     Unsuccessful Set up
        8.3     Release of a Successful Call
        8.4     Error Handling
        8.5     Echo Control Procedure
        8.6     Blocking and unblocking
        8.7     Call Automatic Repeat attempts
        8.8     Dual Seizure
        8.9     Reset
       8.10     Support of Codec Negotiation and Renegotiation
       8.11     Support of Codec Modification
       8.12     Support of Call Mediation Node
 9     General Signalling Transport Requirements
Annex A – Capability Set 2 Services and Functions
Annex B – General Signalling Transport Requirements
Annex C – Functional to Physical Mapping
        C.1     Three Physical Location Scenarios
        C.2     Co‑location of BCF MCF and MMSF.
        C.3     Co‑location of CSF and BCF
        C.4     Co‑location of CSF, BCF and MMSF
        C.5     Functionality of the BCF and MCF
Annex D – Roadmap to BICC CS-2 requirements documentation
        D.1     BICC CS-1 ITU-T Q-series Supplements Applicable to CS-2
        D.2     BICC CS-2 Requirements ITU-T Q-series Supplements
        D.3     BICC CS-2 Mapping ITU-T Q-series Supplements