Caller identity privacy in SIP heterogeneous realms: A practical solution

摘要: The growing demand for voice services and multimedia delivery over the Internet has raised SIPpsilas popularity making it a subject of extensive research. SIP is an application layer control signaling protocol, whose main purpose to create, modify terminate sessions. Research shown that number security issues must be solved in order increase its trustworthiness supersede or coexist with PSTN. In this paper our address such weakness, namely caller identity privacy issue. While some solutions problem do exist, we will show they are inadequate situations. Furthermore, propose novel scheme protection callerpsilas which can also support roaming between different administrative domains. Finally, provide performance results, demonstrate proposed solution efficient even low-end mobile devices.