The VoIP allows you to make telephone calls using a computer network, over a data network like the Internet. VoIP converts the voice signal from your telephone into a digital signal that travels over the Internet then converts it back at the other end so you can speak to anyone with VoIP device or a regular phone number if service available. When placing a VoIP call using a phone with an adapter, you'll hear a dial tone and dial just as you always have.
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