E2U - E.143 to URL

The ENUM (E Number) working group of the IETF is defining a name space in which normal telephone numbers may be resolved into URL (Uniform Resource Locator) for use in IP environments. E2U is a NAPTR (Naming Authority Pointer Record) value that identifies such a string.


  • Fully interactive 3GPP based network map
  • Narrated call flows
  • Detailed network procedures

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