Voice Call Continuity – Principles and practice of seamless mobility on call control level

Konferenz: VDE-Kongress 2006 - Innovations for Europe - Fachtagungsberichte der ITG/BMBF - GMM - ETG - GMA - DGBMT
23.10.2006 - 25.10.2006 in Aachen, Germany

Tagungsband: VDE-Kongress 2006

Seiten: 5Sprache: EnglischTyp: PDF

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Keller, Ralf; Vorwerk, Marc; Barschel, Colin (Ericsson GmbH, Germany)

The availability of dual-mode handset with both cellular radio and WLAN capabilities makes it of interest for both end-users and operators to provide seamless transfer of voice sessions when switching access between Circuit- Switched (CS) and IP and vice-versa. For that reason VCC (Voice Call Continuity), a novel mobility scheme on call control level, is currently under study in 3GPP. This paper describes the 3GPP architecture, outlines handover modes, and provides life experience from a prototypical setup.