VoIP SBC router
A VoIP SBC router is a router used to protect SIP based VoIP networks and allows significant deployments between MIXvoip access network and its customer’s network
It exerts control over the signalling and the media streams involved in setting up, conducting, and tearing down calls. The SBC enforces security, quality of service and admission control mechanism over the VoIP sessions.
A Session Border Controller is like a Firewall for VOIP.
In addition to firewall functions the VoIP SBC router also provides services like Network Address Translation (NAT) traversal.