The FCC has sent a cease-and-desist letter to Twilio, a large communications-platform-as-a-service provider, due to its involvement in originating illegal robocalls on behalf of one of its clients. Twilio has 48 hours to stop the robocalls and 14 days to implement measures to prevent future illegal calls. Failure to comply may result in downstream voice service providers blocking all of Twilio's traffic. The FCC's action is seen as an escalation in its efforts to combat illegal robocalls.