6.0 Introduction

23.2373GPPIP Multimedia Subsystem (IMS) Service ContinuityRelease 17Stage 2TS

Some of the following figures contain a box labelled CS/IMS Intermediate Nodes. This is abstraction for CS/IMS functional elements that exist between the UE and the SCC AS which could include amongst others MSC Server enhanced for ICS, MSC Server enhanced for SRVCC or an MGCF and an MSC Server not enhanced for ICS.