Gatekeeper
Gatekeeper is a program that controls the access to video conferences, routing and call/voice stream processing. It usually operates under the H.323 standard. Gatekeeper also determines the degree of network channel loading, and accordingly, may temporarily deny access or limit the possible number of connections available.
All endpoints, gateways, LAN segments, as well as hardware video conferencing servers (MCU), which are controlled by a Gatekeeper are called the zone. The gatekeeper also provides interoperability and address translation with other Gatekeepers in the network, keeps a record of traffic, duration and type of calls (incoming or outgoing), provides authentication and user authorization.
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FAQ
What is the main difference between a Gatekeeper and an MCU in an H.323 network?
While a Gatekeeper handles call routing, address translation, and bandwidth management, an MCU (Multipoint Control Unit) is responsible for mixing and processing the actual audio and video streams for multi-party conferences. Modern unified platforms like TrueConf combine these roles into a single server, eliminating the need for separate hardware while providing both advanced routing and powerful media processing capabilities.
Can modern software platforms replace traditional hardware Gatekeepers for legacy room systems?
Yes, modern self-hosted video conferencing servers can perform all the functions of a traditional H.323 Gatekeeper without requiring dedicated physical appliances. TrueConf Server includes a built-in multi-gateway that manages call routing, address translation, and bandwidth control for legacy SIP and H.323 endpoints, seamlessly integrating them into your modern communication environment.
How does a Gatekeeper prevent network overload during multiple simultaneous video calls?
A Gatekeeper continuously monitors the network channel loading and can temporarily deny new connection requests or limit bandwidth if the network is at capacity. When managing these resources through TrueConf, administrators can set strict bandwidth policies and prioritize critical traffic, ensuring that your corporate network remains stable even during peak usage times.
How does a Gatekeeper enhance the security of video conferencing networks?
It acts as the central security checkpoint for a zone, handling user authentication, authorization, and maintaining detailed logs of all incoming and outgoing traffic. By deploying TrueConf on-premises, organizations can enforce these strict access controls and keep all authentication data and call records completely within their own secure, private infrastructure.
Can a Gatekeeper connect different video conferencing networks or zones together?
Yes, Gatekeepers provide interoperability and address translation, allowing endpoints in one zone to seamlessly communicate with users in a completely different zone or network. TrueConf supports this through its federation capabilities, enabling multiple independent TrueConf servers to connect securely and route calls across different organizational boundaries or geographical locations.
Do I need to purchase a separate physical Gatekeeper device if I want to use H.323 endpoints?
No, you do not need to invest in expensive, standalone hardware Gatekeepers when using modern software-defined solutions. TrueConf Server natively handles all Gatekeeper functions—such as call admission control, address resolution, and zone management, directly within its software environment, significantly reducing your hardware costs and simplifying IT maintenance.
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