Americans use about 290 million mobile phones, adults and children an average of 10 people have 9 phones. World States with phone up to China about 850 million. By capita, powers up are Russia and Italy, 1.47 phones per person, small States is Monte geluo and or regions most Hong Kong, respective 1.88 and 1.93 per person.

United States business mobile service now has 120 companies, large and small, transfer system based on GSM and CDMA-dominant, clusters, such as numbers, universal mobile, high speed downlink way some companies have already adopted. User difference is up to Verizon (101 million), AT&T (95 million), Sprint Nextel (48 million) and T-Mobile (34 million) and four other companies, some differences in charges for them, but are not significant. Below AT&T charges, for example to make a brief description.

AT&T Mobile services, divided into two broad categories of individuals and families plan. Personal plan monthly fee of US $ 39.99, United States territory of talk time for 450 minutes, every evening at 9 o’clock the next day, and 7 in the morning on weekends, statutory holidays 5,000 minutes free calling time, between the company’s mobile phone free, exceeds the limit of $ 0.45 per minute, if in the month for 450 minutes not used up, can accumulate to later use.

If you choose 900 minutes of call time per month, monthly fee increased to $ 59.99, unlimited calling for $ 69.99, both plans weekend and holiday calls are unlimited. If you want to put Canada include, 450 and 900 minute plan monthly fee increased to $ 20.

Family plan associated with the phone number, two numbers are two of the most commonly used mobile phones. Minimum talk time 550 minutes months costs $ 59.99, 700 minutes $ 69.99, unlimited call is $ 119.99. Each additional mobile phones and phone numbers, monthly fee increased to $ 9.99. Family planning can also accumulate extended use, weekends and holidays, as well as between the company calls free of charge.

When opened, to sign a two-year contract, early withdrawal penalty. Planned opening rate of $ 36, opening each additional cell phone family plan fee increase of $ 36.

Now more and more cell phones with data communication capabilities. If you just send text messages, 200 text messages monthly fee $ 5, $ 1500 article, unlimited sending and receiving text messages monthly fee $ 20. 3G/4G phone or 3G laptop, 3G network 3GB data transmission capacity of US $ 35, 5GB months for $ 60. 4G network is only one plan, 5GB monthly fee US $ 50.

Companies can offer both new people buy phones. For example, AT&T now on customer purchase iPhone3/8G price $ 49, $ 199 iPhone4/16G memory, 32G $ 299. Quite a number of mobile phones At a gift or very cheap, like Samsung quantum 3G Jack/3G 3G, LG, BlackBerry Pearl don’t want money or symbolically, a 1 penny. Course you not signing two year contract was out of the reach of this price. And Government taxes taking a generally is 350 dollars per month monthly fee plus tax money.

Companies particular populations often have promotions at different times or to cover diplomats now Leisure Club members joined a 15% discount AT&T and then.