When voice over IP (VoIP) emerged 20 years ago, businesses’ voice and IT teams were skeptical about how wise – and safe – it was to move voice calls over the Internet via data packets. Although VoIP was substantially more cost-effective, there were concerns around audio quality, latency and, of course, security.


Today, securing VoIP sessions and applications has become a huge challenge. With a growing number of calls and collaborative sessions using VoIP on public and private networks, service providers must respond to enterprises’ increasing concerns about security.


Session border controllers (SBCs) have always been the backbone of secure, quality VoIP. Today, enterprise session border controllers (E-SBCs) are making it possible for…

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