High Availability for SIP: Solutions and Real-Time Measurement Performance Evaluation

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Executive Summary

SIP is rapidly becoming a standard for service integration within a variety of wireless and wireline networks. In this regard high availability, reliability and redundancy are key factors for any SIP based infrastructure. In an adverse environment, especially the Internet and foreseeable 3GPP IMS, high availability solutions are of major importance for SIP network components to smoothly mitigate call increments, device failures, misconfigurations, physical disasters and throttle active attacks. This paper proposes a practical and transparent failover solution for SIP and RTP-Proxy servers.

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