VOIP services
Technology
VOIP services

VoIP is short for Voice over Internet Protocol. The advantage of VoIP phone calls is that unlike regular long-distance calls, phone calls made through a VoIP phone service are free – there are no fees beyond the cost of your Internet access. If you have a reasonable quality Internet connection you can get phone service delivered through your Internet connection instead of from your local phone company.

They are also called as IP telephony, Voice over the Internet (VOI)

VoIP is a technology that allows telephone calls to be made over computer networks like the Internet. VoIP converts analog voice signals into digital data packets and supports real-time, two-way transmission of conversations using Internet Protocol (IP).