In its March 2017 Call Blocking Notice of Proposed Rulemaking and Notice of Inquiry, the Federal Communications Commission began an inquiry into provider-initiated call blocking. In the accompanying Call Blocking Report and Order and Further Notice, the Commission adopted rules expressly authorizing providers to block clearly defined categories of calls highly likely to be illegal and sought comment on two issues related to blocking those calls.
The Commission is now seeking to refresh the record on additional criteria voice providers could use to identify and block illegal calls. Comments are due on September 24, 2018 and Reply Comments are due October 8, 2018.