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TR 23.826SA2
Feasibility study on
Voice Call Continuity (VCC) support
for Emergency calls

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V9.0.0 (Wzip)  2009/03  82 p.

Rapporteur:  Mr. Edge, Stephen

This TR contains the results of the feasibility study into the architectural requirements and alternatives for the support of active voice call continuity between Circuit Switched (CS) domain and the IP Multimedia Subsystem (IMS) for emergency calls. Considerations include overall requirements, architectural requirements, evaluation of potential architectural solutions and alternative architectures.

full Table of Contents for  TR 23.826  Word version:   9.0.0

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1  ScopeWord-p. 6
2  References
3  Definitions, symbols and abbreviationsWord-p. 7
4  Overall Requirements
5  Architectural Requirements and Considerations
6  Architecture Alternatives
6.1  VCC in the Visited Network - Alternative 1
6.2  VCC in the Visited Network - Alternative 2Word-p. 37
6.3  VCC in the Visited Network - Alternative 3Word-p. 54
6.4  Emergency Session Continuity in the Visited Network - Alternative 4Word-p. 64
7  EvaluationWord-p. 73
8  ConclusionWord-p. 80
9  Recommendation
A  Change historyWord-p. 82

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