�1���� Scope����������
�2���� References
�3���� Definitions
�4���� Abbreviations and acronyms�������������
�5���� Conventions������������
�6���� Signalling architecture for emergency calling in an IMS roaming
environment�������������
�7���� Functional requirements of emergency calling in an IMS roaming
environment����������
������� 7.1���� Functional requirements for IMS���������
������� 7.2���� Functional requirements for EPC���������
�8���� Signalling requirements for emergency calling in an IMS roaming
environment����������
�9���� Signalling procedures for emergency calling in an IMS roaming
environment
������� 9.1���� Signalling procedure for inbound UE with retrieval MSISDN from
PCRF
������� 9.2�� ��Signalling procedure for inbound UE without a retrieved MSISDN
from the PCRF�����������
10���� Security considerations������
Appendix I� Use cases of emergency calling in IMS roaming over LTE����
������� I.1���� UE supports emergency calling in a PS domain
������� I.2���� UE does not support emergency calling in a PS domain
Bibliography����