How IP-PBX and IP Phones works together?
The Voice Network comprises of one or more IP Phones, Soft Phones and also Analog Phones in optional Mode. IP PBX is a hardware server comprises of software to manage to entire VoIP Network. Various SIP Phones are connected to IP PBX over the Ethernet These SIP based IP Phones will be first registered in IP PBX when get connected over Ethernet. When these phones makes an inbound extensions call or any other outbound calls IP PBX will establish the connection. IP PBX will comprises of a directory containing the address of various IP Phones connected over the network.