Gatekeepers, Gateways and ProxiesOpenH323 Gatekeeper: http://www.openh323.orgGNU Gatekeeper: http://www.gnugk.orgOpenH323 Proxy: http://openh323.sourceforge.netH323 - ISDN Gateway: http://www.telos.de/linux/H323/Conferencing/VoIP SoftwareOpenMCU: http://www.openh323.orgAsterisk PBX: http://asterisk.orgOther H.323 ClientsOpenPhone: http://www.openh323.orgNetmeeting: http://www.microsoft.comSJPhone: http://www.sjlabs.com/
