�1���� Scope����������
�2���� References
�3���� Definitions
�4���� Abbreviations and acronyms�������������
�5���� Conventions and 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���������
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)/ Call Deflection (CD)
supplementary services to SIP networks����
������� B.7���� Interworking of Explicit Call Transfer (ECT) supplementary
service to SIP networks��������
������� B.8���� Interworking of Call Waiting (CW) supplementary service to SIP
networks��������
������� B.9���� Interworking of Call Hold (HOLD) supplementary service to SIP
networks����������
������ B.10���� Interworking of Completion of Calls to Busy Subscriber (CCBS)
and Completion of Calls on No Reply (CCNR) supplementary service to SIP
networks����
������ B.11���� Interworking of Terminal Portability (TP) supplementary service
to SIP networks���������
������ B.12���� Interworking of Conference Calling (CONF) supplementary service
to SIP networks�����
������ B.13���� Interworking of Three‑Party Service (3PTY) supplementary
service to SIP networks�����
������ B.14���� Interworking of Closed User Group (CUG) supplementary service
to SIP networks��������
������ B.15���� Interworking of Multi‑Level Precedence and Preemption
(MLPP) supplementary service to SIP networks����
������ B.16���� Interworking of Global Virtual Network Service (GVNS)
supplementary service to SIP networks����
���� ��B.17���� Interworking of International Telecommunication Charge Card
(ITCC) supplementary service to SIP networks����
������ B.18���� Interworking of Reverse Charging (REV) supplementary service to
SIP networks�����������
������ B.19���� Interworking of User‑to‑User Signalling (UUS)
supplementary service to SIP networks����
������ B.20���� Supplementary timers (For profiles A and B)�
Annex C���� ���������
������� C.1���� SIP/SIP‑I references (normative)����������
������� C.2���� The P‑Asserted‑Identity SIP header extension (normative)�������
Annex D � IWU � MGW Interaction����
������� D.1���� Overview������
����� Page
������� D.2���� Mn signalling interactions������
Annex E � Codec negotiation between a BICC CS network and the IM CN
subsystem����
������� E.1���� Description of codec negotiation between a BICC circuit
switched (CS) network and the IP multimedia (IM) core network (CN)
subsystem����
Annex F � Multimedia interworking between the IP multimedia core network (CN)
subsystem (IMS) and circuit switched (CS) networks����
������� F.1���� Description of multimedia interworking between the IP
multimedia core network (CN) subsystem (IMS) and circuit switched (CS)
networks����
Annex G � ITU-T T.38 interworking between the IP multimedia core network (CN)
subsystem (IMS) and circuit switched (CS) networks����
������� G.1���� Description of the ITU-T T.38 interworking between the IP
multimedia core network (CN) subsystem (IMS) and circuit switched (CS)
networks����
Annex H � PSTN XML Schema����
������� H.1���� Scope�������������
������� H.2���� MIME type���
������� H.3���� XML Schema definition������������
������� H.4���� IANA registration template����
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)������
Appendix IV � Echo canceller scenarios between SIP and ISUP����
������ IV.1���� Scope��������������
������ IV.2���� Definitions����
������ IV.3���� Example scenarios for call interworking between SIP and ISUP
Bibliography����