CONTENTS

�1���� Scope
�2���� References
�3���� Definitions
������� 3.1���� Definitions of signalling associations
������� 3.2���� Functional model definitions
������� 3.3���� Definition of Signalling Information Elements and Identifiers
������� 3.4���� General Definitions
�4���� Abbreviations
�5���� Conventions
�6���� Architecture
������� 6.1���� Service Architecture
����������������� 6.1.1���� Analogue Loop and Analogue Trunk
����������������� 6.1.2���� ISDN Basic Access
����������������� 6.1.3���� ISDN Primary Access
����������������� 6.1.4���� B-ISDN DSS2 Access
������� 6.2���� Architecture Discussion
����������������� 6.2.1���� ACN-E Architecture
����������������� 6.2.2���� ISN/IMN Architecture
������� 6.3���� Protocol Reference Model
������� 6.4����Recommendation structure
�7���� Signalling Identifiers used in the BICC Access Network
������� 7.1���� Description of Signalling Identifiers
������� 7.2���� Assignment of User-ID between the ACN-E and CSF
�8���� Signalling Transport Protocol Stacks
�� �����8.1���� Operation of BICC Access Network Signalling Encapsulation
����������������� 8.1.1���� Actions of the Application-Specific Functions
����������������� 8.1.2���� Actions of the Message-Multiplex Function
�9���� Coding and Procedures for BICC Access Network Common Header
������� 9.1���� Coding for BICC Access Network Common Header
����������������� 9.1.1���� Requesting and Destination Node Address
����������������� 9.1.2���� Pointer
������� 9.2���� Procedures for Addressing using the BICC Access Network Common Header
����������������� 9.2.1���� Operation at the ISN/IMN
����������������� 9.2.2���� Operation at the ACN-E
����������������� 9.2.3���� Operation at the ACN-T
10���� Coding and Procedures for BICC Access Network Messages
������ 10.1���� List of Identifiers
������ 10.2���� User Identifier
������ 10.3���� Logical Port Identifier
������ 10.4���� Connection Identifier
������ 10.5���� Connection Group Identifier
������ 10.6���� Access Control Association Identifier
������ 10.7���� Application Data
11���� Coding and Procedures for BICC Access Network Call Control
������ 11.1���� Procedures for Call Control
���������������� 11.1.1���� Successful Call Admission
���������������� 11.1.2���� Successful Call Establishment
���������������� 11.1.3���� Normal call release
������ 11.2���� Abnormal conditions
���������������� 11.2.1���� Receipt of unreasonable signalling information
���������������� 11.2.2���� Handling of message format errors
���������������� 11.2.3���� Handling of unexpected messages
��� �������������11.2.4���� Compatibility for the BICC Access Network Call Control
12���� Coding and Procedures for Access Network Control
������ 12.1���� Formats and Codes for BICC Access Network Control
���������������� 12.1.1���� Coding of Action Indicators Unique to the BICC Access Network
������ 12.2���� Procedures for BICC Access Network Control
���������������� 12.2.1���� Successful Bearer Establishment
������ 12.3���� Additional set-up procedures
���������������� 12.3.1���� Introduction
��������������� �12.3.2���� Codec Negotiation
���������������� 12.3.3���� Bearer Control Unit Identifier (BCU-ID)
���������������� 12.3.4���� Out-of-band transport of DTMF and Tone information
���������������� 12.3.5���� Codec modification/mid-call codec negotiation procedures
���������������� 12.3.6���� Connection Group Identifier
���������������� 12.3.7���� Interaction with services invoking bearer redirection
���������������� 12.3.8���� Procedures for reuse of idle bearers
���������������� 12.3.9���� Procedures for use of Structured AAL 1 bearers
������ 12.4���� Normal bearer release
���������������� 12.4.1���� Procedures at the CSF
���������������� 12.4.2���� Procedures at the ACN-T
���������������� 12.4.3���� Procedures at the ACN-E
������ 12.5���� Bearer cut-through (optional procedures at ACN-T)
������ 12.6���� Cut BNC (optional procedures at ACN-T)
������ 12.7���� Abnormal conditions
���������������� 12.7.1���� Receipt of unreasonable signalling information
���������������� 12.7.2���� Handling of message format errors
���������������� 12.7.3���� Handling of unexpected messages
���������������� 12.7.4���� Compatibility for BICC Access Network Control
������ 12.8���� Timers for the BICC Access Network Control Protocol
13���� Coding and Procedures for Remote Media Control
������ 13.1���� H.248 Functions Applicable to Remote Media Control
������ 13.2���� Procedures for Remote Media Control
���������������� 13.2.1���� Successful Call Admission
���������������� 13.2.2���� Successful Call Establishment
������ 13.3���� Additional set-up procedures
���������������� 13.3.1���� Introduction
���������������� 13.3.2���� Echo Control
���������������� 13.3.3���� Out-of-band transport of DTMF and Tone information
���������������� 13.3.4���� Interaction with services invoking bearer redirection
������ 13.4���� Normal call release
������ 13.5���� Bearer cut-through procedures
������ 13.6���� Cut BNC procedures
������ 13.7���� Abnormal conditions
���������������� 13.7.1���� Receipt of unreasonable signalling information
����������� �����13.7.2���� Handling of message format errors
���������������� 13.7.3���� Handling of unexpected messages
���������������� 13.7.4���� Compatibility for the BICC Remote Media Control
Appendix I � BICC Access Network Q.921 Relay
������� I.1���� �� Description of Changes to the BICC Access Network Protocol
������� I.2���� �� Protocol Stacks
������� I.3���� �� Service Access Point to the Q.931 Signalling Layer at the CSF
������� I.4���� �� Service Access Point to the Q.2150.0 Signalling Transport Layer at the CSF
������� I.5���� �� Service Access Point to the Q.2150.0 Signalling Transport Layer at the ACN-E
������� I.6���� �� Service Access Point to the Q.921 LAPD Relay at the ACN-E
Appendix II � BICC Access Network Q.931 Relay
������ II.1���� Protocol Stacks
������ II.2���� Service Access Point to the Q.931 Signalling Layer at the CSF
������ II.3���� Service Access Point to the Q.2150.0 Signalling Transport Layer at the CSF
������ II.4���� Service Access Point to the Q.931 Signalling Layer at the ACN-E
������ II.5�� ��Service Access Point to the Q.2150.0 Signalling Transport Layer at the ACN-E
Appendix III � BICC Access Network Q.2931 Relay
����� III.1���� Protocol Stacks
����� III.2���� Service Access Point to the Q.2931 Signalling Layer at the CSF
����� III.3���� Service Access Point to the Q.2150.0 Signalling Transport Layer at the CSF
����� III.4���� Service Access Point to the Q.2931 Signalling Layer at the ACN-E
����� III.5���� Service Access Point to the Q.2150.0 Signalling Transport Layer at the ACN-E
Appendix IV � BICC Access Network G.964 Relay
������ IV.1���� Description of Changes to the BICC Access Network Protocol
������ IV.2���� Protocol Stacks
������ IV.3���� Service Access Point to the G.964 Signalling Layer at the CSF
������ IV.4���� Service Access Point to the Q.2150.0 Signalling Transport Layer at the CSF
������ IV.5���� Service Access Point to the LAPV5-EF Relay at the ACN-E
Bibliography