Voice over IP

VoIP is the practice of using an Internet connection to pass voice data using IP instead of using the standard public switched telephone network. This allows a remote worker, for instance, to function as if directly connected to a PBX even while at home or in a remote office. In bypassing the public network, it also avoids standard long distance charges, as the only connection is through an ISP. VoIP is being used more and more to keep corporate telephone costs down. Video over IP is also referred to as VoIP.