Session border controller is a relatively new equipment, safely and economically efficient way of connecting the voice over IP and video networks, SBC, situated on the edge of the enterprise network or telecom operators can act as the call signaling and the source of the media and the media, input or output of call signaling in SBC termination, reusing the IP address of the SBC to regenerate, in October 2005, Cisco has released the latest version of the SBC products: Cisco service IP - the IP gateway, designed to meet the demand of enterprises and telecommunications operator SBC more Cisco service IP - the IP gateway is an integrated application of Cisco IOS software, Cisco services more IP - the IP gateway to run on Cisco systems integration business more routers, and Cisco 2600 XM, 3700720 0 VXR and 7301 routing and gateway platform,
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