18 U.S.C. Sec. 2325 Definition of Telemarketing Applicable to Enhanced Penalties under 18 U.S.C. Sec. 2326 is a federal statute that defines telemarketing for the purpose of applying enhanced penalties to violators of 18 U.S.C. Sec. 2326. The statute defines telemarketing as the use of any electronic device, such as a telephone, cellular telephone, computer, facsimile machine, or pager, to induce a potential customer to purchase goods or services. This includes the use of interactive computer services, such as the Internet, to provide information about, or advertise, goods or services. There are three types of telemarketing defined by 18 U.S.C. Sec. 2325: inbound telemarketing, outbound telemarketing, and interactive telemarketing. Inbound telemarketing is when a customer initiates a call to purchase goods or services. Outbound telemarketing is when a telemarketer initiates a call to a customer. Interactive telemarketing is when the telemarketer and customer negotiate the details of a transaction using an interactive computer service, such as the Internet.