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.
FreelyCall - Free and low rate calls all over the world!
Free Internet and Video Calls, Free Conferencing and Online Numbers, Cloud PBXes, Hosting Solutions