Gatekeeper is an administrational tool for H.232 multimedia networks. A single unit can control interactions for each zone, which comprises the terminals, MCU's and gateway within the frames of a particular domain. Gatekeeper is an optional element, but when it available, it becomes the central administrative entity.
Please visit this link to test our quality http://vasc.com.vn/template/default/page/other/FormVOIP.aspx
Read more