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As more and more companies move towards a full scale replacement of conventional PSTN phones with a VOIP infrastructure, there is an increased incentive for malicious individuals to break into the phone architecture. The main benefit of implementing VOIP over conventional phone systems is cost saving and efficiency. With the primary concern about VOIP implementations being voice quality, latency and interoperability, the security aspects of VOIP deployments are often overlooked. The traditional separation of the PSTN and data networks in conventional office infrastructures means that vulnerabilities in data networks will have minimum impact on traditional phone systems.
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