Beyond encryption: VoIP security risks
One network manager was so concerned about VoIP conversations being easily captured at any point on the network between the participants that he predicted his company would not use VoIP unless every conversation was encrypted.
While traffic between corporate sites is transmitted through secure VPN tunnels, intrasite traffic is handled differently. Because of the complexity and overhead of running VPN tunnels, they are rarely implemented in-building. Not only do tunnels have to be defined between each communicating pair, but the crypto functions also demand CPU resources, which could degrade your PC's performance.
At Sci-Tech Today.
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