A service plan is the rate plan one selects when choosing a kind of service, such as cell phone service. A service plan typically consists of a monthly base rate for access to the system and a fixed amount of service per period. For example, cell phone service for a specific company will cost a set amount per month. A more expensive plan would probably offer unlimited voice and text messaging service, and a certain amount of data transfer as well (or "unlimited" data service, but the transfer speed is throttled above a certain amount). A much cheaper service plan might offer 500 minutes of voice per month, with each text message counting as a half minute. Service Plans are also available for equipment maintenance, household or commercial utilities, college dining services, and many other services.