7 Security

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

7.1 General

There are no impacts on existing security mechanisms for the CS Domain or for IMS as a result of Session Transfers.

7.2 Access security for CS Domain

TS 33.102 [11] describes the Security Architecture for GSM and UMTS subscribers, SC places no additional requirements upon the CS domain security than those already in the detailed access specific specification e.g., above those described in TS 33.102 [11].

7.3 Access security for IMS

TS 33.203 [12] specifies the security features and mechanisms for secure access to the IM subsystem (IMS). SC places no additional requirements upon the IMS above those described in TS 33.203 [12].