A:AnswerYou would have to activate your new line with at&t after you purchase your phone through bestbuy. The activation of the new line is what gives you the $50 discount.
A:AnswerThis phone will work great for business has plenty of ram so the phone is fast to respond and doesn't lag. Battery life is phenomenal with heavy use such as videos it will last about 20hrs with constant use. Charging time is fast full battery takes a hour and a half which isn't bad considering how long it takes for the battery to die. This phone will last you for year to come.