As noted, you'll also need to have an existing US-based mobile or landline phone number, so in that sense, Google Voice is not a free phone service but ... VoIP (Voice Over Internet Protocol).

Cloud-based voice over IP (VoIP) has long been the go-to solution for business telephony. But that doesn't mean choosing the right VoIP service is easy. Modern VoIP systems offer not just voice ...

VoIP, or “Voice over Internet Protocol,” lets ... According to robocall blocking service YouMail, 46% of all illegally made phone calls use VoIP technologies. The volume of VoIP scams is ...