20 Carriers Face Call-Blocking in the US for Submitting Fake 'Robocall Mitigation Plans'

"Twenty phone companies may soon have all their voice calls blocked by US carriers," reports Ars Technica, "because they didn't submit real plans for preventing robocalls on their networks."The 20 carriers include a mix of US-based and foreign voice service providers that submitted required "robocall mitigation" plans to the Federal Communications Commission about two years ago. The problem is that some of the carriers' submissions were blank pages and others were bizarre images or documents tha