Foreword

2 References

3 Definitions, symbols and abbreviations

G.3 Application usage of SIP

G.2 5GS aspects when connected to the IM CN subsystem

G.1 Scope

F.3 Application usage of SIP

F.2 GPRS (Iu mode only) aspects when connected to the IM CN subsystem

E.3 Application usage of SIP

F.1 Scope