Product description
Roytel RT-EIMS_SBC is a session border controller, a device usually deployed at the border of the IP voice network. It provides functions like access permission controlling, NAT traversal and network security mechanism. It has outstanding IP inter-working capability, usually located in the border of IMS network, connecting the end-users to IMS network. It can provide a maximum of 100,000 subscribers and 10,000 concurrent calls
With SBC, your terminals(IP phones or soft phones) of Internet can access to the IP PBX. As long as the terminal can communication with Internet, it also can access to the IP PBX