Advanced Methods To Target and Eliminate Unlawful Robocalls
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Issuing agencies
Abstract
In this document, the Federal Communications Commission (Commission) modifies its existing call blocking rules. Specifically, the Commission requires all domestic voice service providers to block based on a reasonable do-not-originate (DNO) list. Second, it requires voice service providers to return Session Initiation Protocol (SIP) code 603+ when calls are blocked based on reasonable analytics.
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