The FCC is not the only federal agency tasked with regulating telephone calls. The FTC also regulates telephone calls pursuant to the Telemarketing Sales Rule (“TSR”) (16 C.F.R. § 310 et seq.). And while the scope of the TCPA and the TSR differs, the two sets of regulations overlap in a key area—prerecorded calls. See 47 C.F.R. § 227(b)(1); 16 C.F.R. § 310(b)(iv). As we have noted in a previous post, these regulations are not entirely consistent.