How VoIP Works
If you’ve never heard of VoIP, get ready to change the way you think about long-distance phone calls. VoIP, or Voice over Internet Protocol, is a method for taking analog audio signals, like the kind you hear when you talk on the phone, and turning them into digital data that can be transmitted over the Internet.
How is this useful? VoIP can turn a standard Internet connection into a way to place free phone calls. The practical upshot of this is that by using some of the free VoIP software that is available to make Internet phone calls, you’re bypassing the phone company (and its charges) entirely.
In Basic term, VOIP is system turns your voice into computer data and transfer to another computer that calls your cell phone and delivers the callers voice over the internet.
There is couple of solutions VOIP systems developed.
Physical VOIP PBX systems allocated in your office, home environment
Cloud PBX, cost effective solution to rent voip service from supplier in the internet.
Computer Solution also provides Local Numbers can be rented to have DID number allocated for your business.