D.4 LI for standalone messaging

D.5 LI for chat

D.3 LI for capability discovery

D.1 General

D.2 LI for Registration and Deregistration

A.4 Non-3GPP access in a non-roaming scenario

A.1 Non-roaming scenario

A.2 Interworking with EPC/E-UTRAN

A.3 Multiple DN connections in a PDU session

8 LI security and deployment considerations