A framework for anonymizing GSM calls over a smartphone VoIP network

This source preferred by Vasilis Katos

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Authors: Psaroudakis, I., Katos, V. and Efraimidis, P.S.

Journal: IFIP Advances in Information and Communication Technology

Volume: 376 AICT

Pages: 543-548

ISBN: 9783642304354

ISSN: 1868-4238

DOI: 10.1007/978-3-642-30436-1_46

The proposed framework describes a service for users that gives them the ability to make gsm calls from their smartphones without revealing their identity. The principle to achieve that is simple: instead of using your cell phone to make a call, pick somebody else's phone to do so. We proposed an infrastructure of smartphones, sip registrars and sip proxies to provide caller anonymity. We developed a testbed where a smartphone registers on a SIP registrar and can start GSM conversation through another smartphone acting as a GSM gateway, by using a SIP proxy. Empirical evaluation revealed no significant QoS degradation. © 2012 IFIP International Federation for Information Processing.

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