What is the difference between the VoIP PBX?

"PBX" means "Private Branch Exchange".

A private organization phones are connected between them without resorting to the public telephone network. Generally private to the public telephone network to enable communication with the outside world. Packet-switched networks were advanced computing, established organizations to connect the computers.

VoIP

"VoIP" "voice over Internet Protocol"-the discourse on Internet failure sends packet signal after conversion into a digital stream.

Receiving computer reassembles the packets and converts the digital message to her.

Convergence

Engineering and telecommunications have come to recognize that ran two parallel networks, two transport information.

The development of digitized sounds gave the opportunity on the data network calls.

IP - PBX

Voice and combined hot LAN VoIP PBXS or IP - PBX.

The combination of these services makes PBX systems relating to the costs for small businesses. Another advantage is the possibility of external calls over the Internet instead of forwarding to the telephone network. This improves the quality of service and lowers costs.