A free call is a telephone call that does not incur any charges for the caller. It is usually provided by a service provider, such as a telephone company, and can be used to make local or long-distance calls. The term 'free call' is often used interchangeably with 'TOLL-free call', which refers to a call that is free of charge for the caller, but may incur a fee for the service provider. The crossword solution for this term is 'TOLL'.