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7.19  Key Issue - Service continuity at domain and RAT change for TS 11, TS 12 and equivalent PS service
7.19.1  Voice call continuity between IMS over SAE/LTE access and CS domain
7.19.1.1  Description of key issue Voice call continuity between IMS over SAE/LTE access and CS domain
7.19.1.2  General aspectsWord-p. 96
7.19.1.3  Alternative solution A - Combinational VCC
7.19.1.4  Alternative solution B
7.19.1.5  Alternative solution C - CreDT
7.19.1.6  Alternative solution D - "Inter-MSC Handover" solution
7.19.1.6a  Alternative D-1 - Inter-MSC Handover with anchoring at the VCC ApplicationWord-p. 100
7.19.1.6b  Alternative D-2 - LTE-VMSC Anchor SolutionWord-p. 109
7.19.1.7  Alternative E - IMS Anchored Voice Continuity
7.19.1.8  Alternative F - Inter-MSC Handover with IMS Centralised ServicesWord-p. 124
7.19.1.9  Alternative D/FUp
7.19.1.10  Partial Conclusions on Voice call continuity between IMS over SAE/LTE access and CS domainUp
7.19.1.11  Evaluation of the remaining optionsWord-p. 145
7.19.1.12  Conclusions on Voice call continuity between IMS over SAE/LTE access and CS domain over GERAN/UTRAN accessWord-p. 148
7.19.2  Handover of MSC controlled voice calls between SAE/LTE access and CS access
7.20  Key Issue - SAE IdentitiesUp
7.21  Key Issue - Network Discovery and SelectionWord-p. 153
7.22  Key Issue - Voice service continuity between cdma2000 1xRTT Revision A and E-UTRA
8  Consolidated architecture
9  Conclusions

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