Presence detection and handoff for cellular and internet...

H - Electricity – 04 – Q

Patent

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Details

H04Q 7/20 (2006.01) H04Q 7/24 (2006.01)

Patent

CA 2574052

A telephone system supports communication with user devices over both a cellular radio network as well as over an Internet Protocol (IP) network, and enables roaming and active call handoff between cellular and IP domains. Approaches to detecting presence of a user near a suitable IP network are used in controlling transitions between the domains. Components of the system interact with conventional cellular telephone systems, for example, by emulating behavior of control components, providing proxy services for conventional components, transporting cellular telephone control communication over IP connections, or by simulating cellular operating characteristics of user devices operating in an IP domain.

L'invention concerne un système de téléphone prenant en charge les communications avec des dispositifs utilisateurs à la fois dans un réseau cellulaire de radiocommunication et dans un réseau IP (Internet), et permettant l'itinérance et le transfert actif des appels entre les domaines cellulaires et IP. Ce système fait appel à des procédés permettant de détecter la présence d'un utilisateur à proximité d'un réseau IP adéquat pour commander les transitions entre les domaines. Les composants du système interagissent avec les systèmes téléphoniques cellulaire conventionnels, par exemple en émulant le comportement des composants de commande, en fournissant des services proxy pour les composants conventionnels, en transportant les communications de commande des téléphones cellulaires par des liaisons IP, ou en simulant les caractéristiques de fonctionnement cellulaire des dispositifs utilisateur fonctionnant dans un domaine IP.

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