Businesses connecting their infrastructure to a SIP Trunk, or VoIP Connection, require a Session Border Controllers (SBC) for security, interoperability and transcoding. Often times, businesses will forget the importance of an SBC when switching from their legacy phone system to VoIP and simply use their existing firewall for protection, and make a huge mistake! A typical firewall can only protect your data network and as soon as you as you open it up to the internet, which is how you connect to VoIP services, the entire network is exposed.
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