An IP PBX is a phone system that routes voice calls over the internet. It connects IP phones and offers features like call control and voicemail, providing flexible, low-cost communication.
An IP phone connects through an Ethernet cable, rather than a phone jack, to the internet, where it connects to the IP address of either the VoIP provider or the hosted PBX provider.
A VoIP device is used in a network to make voice calls over the internet instead of traditional phone lines. It connects to other devices and converts voice into data for communication.