ENUM Administrative Process Reference Model James Yu, NeuStar, Inc. December 14, 2000.

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Presentation transcript:

ENUM Administrative Process Reference Model James Yu, NeuStar, Inc. December 14, 2000

12/14/00 2 ENUM DNS Hierarchy in the US e164.arpa 1.e164.arpa e164.arpa->NAPTRs (ldap://ldap.z1.com) LDAP DB Based on country-code x.x.x.1. e164.arpa y.y.y.1. e164.arpa... Non-US NPAs US NPAs Tier 1 (US) Tier e164.arpa->y1.com Tier 3 (Depending on the application) z.z.z.1. e164.arpa Legend DB Database LDAP Lightweight Directory Access Protocol NPA Numbering Plan Area

12/14/00 3 Reference Model I (General) T1E T2E End User TSP ASP A B C F G E D T2E H Legend ASP Application Service Provider TIE Tier 1 Entity T2E Tier 2 Entity TSP Telephony Service Provider ** End User can be the end user itself or an agent authorized to represent the end user. ** TSP can offer application services also. The “TSP” entity performs functions specific to the TSP.

12/14/00 4 End User Changes T2E Steps 1. End User asks a new T2E (T2En) to host all his NAPTR RRs. 2. T2En verifies End User info. and informs T1E about T2E assignment for the TN. 3. T1E confirms the T2E change for the TN with the old T2E (T2Eo). 4. T1E sends T2Eo info. for the TN to T2En. 5. T2En retrieves all the NAPTR RRs from T2Eo and make the necessary changes. 6. T2En informs T1E to activate the pointer for the TN to T2En. 7. T1E sets the pointer to T2En for the TN and acknowledges the activation with T2En. 8. T1E informs TSP about T2E change for the TN. 9. TSP may interact with T2En to make changes to its NPPTR RRs. T2En T1E End User 1 54,7 3 T2Eo 2,6 TSP 8 9

12/14/00 5 End User Changes TSP Steps 1. End User wants to port his TN to a new TSP (TSPn). 2. TSPn contacts T1E for the ENUM service for the TN, provides its default T2E info., and receives End User-selected T2E info. 3. T1E informs T2E about TSP change and TSPn’s default T2E info. 4. TSPn interacts with T2E to provision its NAPTR RRs, or T2E retrieves the NAPTR RRs from TSPn’s default T2E. 5. In synchronization with the activation for the ported TN, T1E informs T2E to switch to TSPn’s NAPTR RRs. T2E T1E TSPn End User 1 3,5 2 4

12/14/00 6 Reference Model II (T2E=TSP) T1E T2E/TSP End User Legend ASP Application Service Provider TIE Tier 1 Entity T2E Tier 2 Entity TSP Telephony Service Provider ASP A’ C’ T2E/TSP E’ B’ D’ ** End User can be the end user itself or an agent authorized to represent the end user. ** TSP can offer application services also. The “TSP” entity performs functions specific to the TSP.

12/14/00 7 Next Steps Enhance the reference model to include –Number portability administrator –New entities that are related to Non-geographic numbers Non-US environment Others Generalize the names in the reference model to represent their roles in the ENUM administrative process