I have a business and have to deal most of the things on cell phone only. I spend most of the time in talking to customers and clients on cell phone. I avail an AT&T cell phone but it does not come with any best unlimited cell phone plan, I do not know about the other networks. Please any one of you do guide me if any other networks come with any best unlimited cell phone plan. My first priority is more free calling minutes, I do not use text messaging but if it is free then good. I hardly use internet on my cell phone.