Bridgeport Networks, Inc.

Sanjay Jhawar

Justin Aborn

Ivan Dean Bogdanovic

Steven Jay Blumenthal

Bruce M Wiatrak

James D O'Brien, Jr

Karl E Freter

Mats A Samuelsson

Andre De Verteuil

Application layer authentication of a data-network based application makes use of a SIM function accessible to the application and telephone network authentication service accessible to a server to the application. For example, the application uses SIP (Session Initiation Protocol) for communication with the server and the authentication service is provided via a GSM based telephone network. In one implementation, a device (a 'dongle') includes an authentication module, application software, and an interface for communicating with a remote server over a data communication network. The application software includes instructions for using the authentication module to authorize an application layer interaction with the remote server.

Network based authentication

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, for example, enabling automatic transitions between domains, and delivery of calls to a mobile user to data network devices in the vicinity of the user.

Presence detection for cellular and internet protocol telephony

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Chicago, IL, United States of America

Sanjay Jhawar