a VoIP Network VoIP services need to be able to connect to traditional circuit-switched voice networks. The H.323 standard components are: H.323 terminals that are endpoints on a LAN, gateways that interface between the LAN and switched circuit network, a gatekeeper that performs admission control functions and other chores, and the MCU (Multipoint Control Unit) that offers conferences between three or more endpoints. H.323 terminals are LAN-based end points for voice
