you need to get a plan and even then only some calls are free.
If you have access to wifi, just turn the wifi on and load skype. Even then, you are going to be paying about 8 a month for unlimited U.S. skype. but works if you are in a pinch and have steady wifi access. also not, gmail has a good phone on their system too, mine is free, not sure about everyone else though. Worst case scenario, you can turn the phone on for a day at a time for 3 bucks or so.
Mobile phones, mobiles, cellular phones, cellphones
a mobile phone is a small thing that you can talk through
They also call it cellular phones, mobile phones, mobile devices, wireless devices. They call it a cell phone because it uses cellular signals.
As long as your voice plan includes Mobile-To-Mobile calling then all calls between AT&T phones are free.
only if have you have a smart phone, because smart phones have some apps from which we can do free calls.
Mobile phones
yes
Free mobile phones can br found at all leading mobile network providers, well free meaning you enter into an air time contract with them and they provide in essence a free phone.
One can find free wallpapers for mobile phones from many different online websites. Some websites with free wallpaper for mobile phones include Zedge and CellSea.
A nerd
To Call my Boyfried :D
mobile phones are called "portable" in French.