Going VoIP-only: Do you still need cellular voice service?
These days, smartphones with speedy Web connectivity are easy to find, so consumers should be able to get by with just a roomy data plan, dumping voice service in favor of VoIP. But is that practical? To see how feasible cutting voice service is, I decided to go VoIP-only for a week, on the new T-Mobile/Walmart prepaid plan that offers 5GB of 4G data on T-Mobile's HSPA+ 14.4 network for a measly $30 per month.