The term "Free Phone" refers to a telephone service that is provided without any additional cost beyond the standard charges for using the phone network. This means that customers can make and receive calls, as well as send text messages or use other services included in their plan without incurring any extra costs. The phrase often refers specifically to a type of mobile phone contract where the monthly fee covers all call charges, both within the customer's own network and when calling other networks. In this context, "Free Phone" is used as a marketing term to attract customers who want the convenience and flexibility of being able to make unlimited calls without worrying about additional costs.