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EVALUATION OF VOIP HANDOFF SCHEMES BETWEEN WLANS
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This book presents the result of a study on voice §over IP (VoIP) handoff schemes between wireless §local area networks (WLANs) and cellular networks. §Interest in this study arises from the proliferation §of WLANs in the corporate environment and the §emergence of new set of cell phones that can operate §in both the cellular network and the WLAN. The focus §on this study is on how to allow a voice call §established when a user is in a WLAN to be handed §off to the cellular network when the user moves §outside the limits of the WLAN without dropping the §call. Similarly, a call established when a user is §in cellular network and enters a corporate §environment with no cellular coverage will be handed §off to the WLAN to avoid disruption of the call. The §Hybrid Coupling Scheme is presented in the book in §addition to known methodologies.
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