The Telephone Consumer Protection Act of 1991 (TCPA), as amended by the Junk Fax Prevention Act of 2005 (JFPA), prohibits the use of "any telephone facsimile machine, computer, or other device to send, to a telephone facsimile machine, an unsolicited advertisement." 47 U.S.C. §227(b)(1)(C). The TCPA defines "unsolicited advertisement" as "any material advertising the commercial availability or quality of any property, goods, or services which is transmitted to any person without that person's prior express invitation or permission." 47 U.S.C. §227(a)(5). Federal Communications Commission (FCC) regulations implementing the TCPA contain an identical definition of "unsolicited advertisement." 47 C.F.R. §64.1200(f)(16).