Carrier/Infrastructure ENUM Requirements draft-lind-infrastructure-enum-reqs-01.

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Presentation transcript:

Carrier/Infrastructure ENUM Requirements draft-lind-infrastructure-enum-reqs-01

Definitions Infrastructure ENUM - the use of the technology in RFC3761 by the carrier-of-record for a specific E.164 number to map a telephone number into a URI that identifies a specific point of interconnection to that service provider's network that could enable the originating party to establish communication with the associated terminating party Carrier of Record - the entity that provides PSTN service for an E.164 number (ultimately a matter for national authorities to determine)

Requirements (1) 2.1. Infrastructure ENUM SHALL provide a means for a carrier to populate DNS RRs in a common publicly accessible namespace for the E.164 numbering resources for which it is the carrier-of-record Queries of infrastructure ENUM FQDNs MUST return a result, even if the result is NXDOMAIN. Queries must not be rejected, e.g. based on ACLs Infrastructure ENUM SHALL support RRs providing a URI that can identify a point of interconnection for delivery of communications addressed to the E.164 number. 2.4.Infrastructure ENUM SHALL support an IRIS capability that allows qualified parties to obtain information regarding the E.164 numbering resources and the corresponding carrier-of-record. 2.5.Implementation of Infrastructure ENUM MUST NOT restrict the ability of an end-user, in a competitive environment, to choose a Registrar and/or Tier 2 name server provider for end-user ENUM registrations.

Requirements (2) 2.6. Infrastructure ENUM SHALL be implemented under a TLD that can support reliability and performance suitable for PSTN applications Infrastructure ENUM MUST meet all reasonable privacy concerns about visibility of information an end user has no control over, for example discovery of unlisted numbers, or inadvertent disclosure of user identity. 2.8.Proposed implementations of Infrastructure ENUM SHOULD a. Minimize changes required to existing requirements that are part of RFC 3761 b. Work with open numbering plans c. Restrict additional functionality to carrier resolvers. d. Minimize the number of lookups required to obtain as many NAPTR records (end-user and carrier) as possible. e. Minimize the client knowledge of the numbering plan required. f. Maximize synergies with end-user ENUM g. Support interworking with private ENUM trees.