What Exactly is VoIP Technology? · NetEase Academy · Tutorials

Since it was first introduced in 1995, VoIP has become the world's most widely used telephone product. Currently, there are about 5 million VoIP users, and industry observers say that this number will increase fivefold in the next two years. The VoIP technology, which transmits phone calls over the Internet, is also one of the most economical telephone technologies in the world. Despite some serious limitations, many VoIP services only cost $20 per month. To understand what VoIP really is, you need to figure out the following issues.