Feasibility Study of Single Radio Voice Call Continuity (SRVCC) from UTRAN/GERAN to E-UTRAN/HSPA; Stage 2
The objective of the feasibility study is to investigate a solution for supporting Single Radio Voice Call Continuity (SRVCC) from 3GPP UTRAN/GERAN CS access to 3GPP E-UTRAN/HSPA access, for voice call initiated in LTE/HSPA access and previously handed over to UTRAN/GERAN CS access, as well as for the voice call directly initiated in UTRAN/GERAN CS access.
This Technical Report investigates solutions for SRVCC for voice calls that are anchored in the IMS.
Coordination between the SRVCC for voice call and the handover of non‑voice PS bearers is also covered.