A VoIP phone or IP phone uses voice over IP technologies for placing and transmitting telephone calls over an IP network, such as the Internet, instead of the traditional public switched telephone network (PSTN).
With VoIP, analogy voice calls are converted into packets of data. The packets travel like any other type of data, such as e-mail, over the public Internet and/or any private Internet Protocol (IP) network. Using a VoIP service, you can call landline or cell phones. For more information get help at CodeAvail- Online Computer Science Assignment
VOIP (Voice Over Internet Protocol) is a latest technology. VOIP phone is a software that is designed to receive and send calls over an IP network. VOIP phones systems convert audio into a digital format that that can be transmitted over the internet and converts incoming digital phone signals from the internet to standard telephone audio. VoIP phones include features and capabilities that not found in traditional analog phones.