https://app.knowbase.one/vault/rfc/docid/6648
RFC6116: The E.164 to Uniform Resource Identifiers (URI) Dynamic Delegation Discovery System (DDDS) Application (ENUM)
Internet Engineering Task Force (IETF) S. Bradner Request for Comments: 6116 Harvard University Obsoletes: 3761 L. Conroy Category: Standards Track Roke Manor Research IS...