LG Wireless Phone

Are there cell phones that can use wireless internet to place a call rather then a mobile carrier?

I know they have homephones that you can use directly with your computer but I was wondering do they have cell phones that can pick up wireless internet and use it to place calls, hopefully for free or cheaper?

Public Comments

1. T Mobile. it is $9.99 a month. it is a cell phone though
2. Tmobile has one that can work on wiFi but it costs per use or monthly.