Toll-free phone numbers are assigned to one of several area codes, usually 800, 888, 877 or 866. They have become so popular in recent years that in 2010, 855 became a toll-free area code, and several other area codes will become toll-free in the future. These numbers are used for a variety of functions, such as technical-support hotlines or phone sales. Calling a toll-free number from a mobile phone is really no different than calling from a landline.
Turn on your cell phone.
Type in the toll-free number into the number pad. Most cell-phone providers do not require you to input a 1 before you dial a long-distance number, but if the call fails for any reason, retry with a 1 preceding the 10-digit toll-free number.
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Press the call button on your cell phone to initiate the call.