CONTENTS

�1���� Scope�
�2���� References�
�3���� Definitions��
�4���� Abbreviations���
�5���� Methodology����
������� 5.1���� Conventions for representation of BICC/ISUP PDU����������
������� 5.2���� Conventions for representation of SIP/SDP information������
������� 5.3��� �General principles��
������� 5.4���� ISUP encapsulation � detailed procedures��
������� 5.5���� sip: and sips: URIs�
�6���� Incoming call interworking from SIP to BICC/ISUP at I‑IWU������
������� 6.1���� Sending of Initial Address Message (IAM)�
������� 6.2���� Receipt of subsequent INVITE������
������� 6.3���� Sending of COT����
������� 6.4���� Receipt of Connect message (CON)����������
������� 6.5���� Receipt of ACM����
������� 6.6���� Receipt of CPG�����
������� 6.7���� Receipt of Answer Message (ANM)����������
������� 6.8���� Through connection of the bearer path��������
������� 6.9���� Receipt of Suspend message (SUS) network initiated���������
������ 6.10���� Receipt of Resume message (RES) network initiated���������
������ 6.11���� Release procedures at the I‑IWU��
�7���� Outgoing call interworking from BICC/ISUP to SIP at O‑IWU����
������� 7.1���� Sending of the first INVITE�����������
������� 7.2���� Receipt of SAM after INVITE has been sent���������
������ 7.3 �����Receipt of 18X response���
������� 7.4���� Expiry of timers and sending of early ACM
������� 7.5���� Receipt of 200 OK INVITE����������
������� 7.6���� Through connection of BICC/ISUP bearer path�����
������� 7.7���� Release procedures at the O‑IWU�
������� 7.8���� Timers at O‑IWU��
�8���� Bibliography (informative)
Annex A � BICC specific interworking for basic call��� �
������� A.1���� Introduction����������
������� A.2���� Interworking BICC to/from SIP with common media bearer technology and BICC supports "Bearer Control Tunnelling"����
������� A.3���� Bearer Control Interworking Function�������
Annex B � Interworking for ISDN supplementary services����
������� B.1���� Interworking of CLIP/CLIR supplementary service to SIP networks����������
������� B.2���� Interworking of COLP/COLR supplementary service to SIP networks�������
������� B.3���� Interworking of Direct‑Dialling‑In (DDI) supplementary service to SIP networks����
������� B.4���� Interworking of Malicious Call Identification (MCID) supplementary service to SIP networks����
������� B.5���� Interworking of Sub‑addressing (SUB) supplementary service to SIP networks������
������ �B.6���� Interworking of Call Forwarding Busy (CFB)/Call Forwarding No Reply (CFNR)/Call Forwarding Unconditional (CFU) supplementary services to SIP networks����
������� B.7���� Interworking of Call Deflection (CD) supplementary service to SIP networks���������
������� B.8���� Interworking of Explicit Call Transfer (ECT) supplementary service to SIP networks����������
������� B.9���� Interworking of Call Waiting (CW) supplementary service to SIP networks
������ B.10���� Interworking of Call Hold (HOLD) supplementary service to SIP networks�����������
������ B.11���� Interworking of Completion of Calls to Busy Subscriber (CCBS) supplementary service to SIP networks����
������ B.12���� Interworking of Completion of Calls on No Reply (CCNR) supplementary service to SIP networks����
������ B.13���� Interworking of Terminal Portability (TP) supplementary service to SIP networks��
������ B.14���� Interworking of Conference Calling (CONF) supplementary service to SIP networks��������
������ B.15���� Interworking of Three‑Party Service (3PTY) supplementary service to SIP networks��������
������ B.16���� Interworking of Closed User Group (CUG) supplementary service to SIP networks����������
������ B.17���� Interworking of Multi‑Level Precedence and Preemption (MLPP) supplementary service to SIP networks����
���� ��B.18���� Interworking of Global Virtual Network Service (GVNS) supplementary service to SIP networks����
������ B.19���� Interworking of International Telecommunication Charge Card (ITCC) supplementary service to SIP networks����
������ B.20���� Interworking of Reverse Charging (REV) supplementary service to SIP networks��
������ B.21���� Interworking of User‑to‑User Signalling (UUS) supplementary service to SIP networks����
Annex C����
������� C.1���� SIP/SIP‑I references (normative)��
������� C.2��� �The P‑Asserted‑Identity SIP header extension (normative)
Appendix I � Interworking scenarios between SIP and BICC����
������� I.1���� �� Scope���
������� I.2���� �� Definitions
������� I.3���� �� Abbreviations������
������� I.4���� �� Methodology�������
������� I.5���� �� Interworking of SIP accesses to BICC�����
Appendix II � Interworking scenarios between SIP and ISUP����
������ II.1���� Scope�����
������ II.2���� Definitions��
������ II.3���� Abbreviations���������
������ II.4���� Methodology���������
������ II.5���� Interworking of SIP Access to ISUP����������
Appendix III � Interworking scenarios between Profile C (SIP‑I) and ISUP����
����� III.1���� General���
����� III.2���� Interworking of ISUP with SIP using Profile C (SIP‑I)��������