1. H.323 voice over IP gatekeeper OpenGatekeeper supports all the basic features of an H.323 Gatekeeper such as registration, admissions and access control, address translation and bandwidth monitoring and control. To utilise the gatekeeper you require a H.323 client, such as simph323, ohphone or even MS Netmeeting. It also supports many advanced features such as: - Gatekeeper routed calls - Support of H.323v2 alias types (party number, URL, transport id and email address) - Support for gateway prefixes - Registration and call activity logs - Neighbour gatekeeper database - Registration time to live From Debian 3.0r0 APT