A toll-free call is a type of phone call that is free for the person making the call. Synonyms for this term include toll-free number, 800 number, free phone call, and free call. These terms all refer to the same concept of a call that does not incur charges for the caller, typically because the recipient of the call pays for it. Other related terms include toll-free dialing, toll-free line, and toll-free service. Regardless of the terminology used, toll-free calls are a popular way for businesses and other organizations to offer customer service and support without imposing fees on the people who use these services.