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Introduction of ENUM in Australia - Benefits, Practical Operation, and Law Enforcement Issues

Learn about ENUM, a protocol mapping telephone numbers to domain names, its benefits, practical operation, and the Australian Communications Authority's role. Explore trial details, law enforcement concerns, and how ENUM impacts emergency services and interception of communication. Contact Robert Urquhart at the ACA for more information.

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Introduction of ENUM in Australia - Benefits, Practical Operation, and Law Enforcement Issues

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  1. INTRODUCTION OF ENUM IN AUSTRALIA Robert Urquhart Telecommunications Licensing Group Australian Communications Authority (ACA) 5 December 2003

  2. TOPICS • What is ENUM? • Potential benefits/opportunities • Practical operation • ACA role: • trial • law enforcement issues 2

  3. WHAT IS ENUM? • ‘Electronic numbering’ or ‘electronic number mapping’ • IETF protocol that maps telephone numbers to domain names • Globally accessible telephone book indexed by number • Does not carry or set-up calls

  4. BENEFITS & OPPORTUNITIES • Simplified business card • Number for life • Called-party or calling-party settings • Improve interoperability of PSTN/IP: • access by phone • simpler addressing • Benefits for consumers/carriers: • toll bypass, new applications

  5. PRACTICAL OPERATION(1 of 3) • Person dials number • Number converted to domain name • reverse, add dots, add domain • For example: • 61 08 9963 6713 becomes • 3.1.7.6.3.6.9.9.8.1.6.e164.arpa

  6. PRACTICAL OPERATION(2 of 3) • Resulting domain stores addressing info for each service type • may provide options or set preferences • ENUM runs DNS query on domain: • valid record found, call proceeds over IP network • valid record not found, call routed to PSTN

  7. DNS-Server Gateway Sip server PRACTICAL OPERATION(3 of 3) Response sip:pc@xyz.com.au Query 0.5.1.1.1.7.2.6.3.1.6.e164.arpa? “Call setup” Sip sip:pc@xyz.com.au Dial ENUM no. +61362711150 7

  8. ACA ROLE • Facilitation of industry process • Authority re 1.6.e164.arpa domain space • Formation and administration of discussion group: • provides discussion forum • advice/recommendations to industry • input to trial

  9. TRIAL OF ENUM SERVICES(1 of 2) • Interest identified • Context document: • framework and requirements re trial • will form part of ACA invitation (early 2004) • Start April/May 2004 – 12 months • Opt-in • Limited customer scope • No PSTN interconnection

  10. TRIAL OF ENUM SERVICES(2 of 2) • Commercial, technical, consumer and regulatory issues • Additional ACA consultation (e.g. NAC, LEAC, OFPC) • Post-trial review, consultation

  11. LAW ENFORCEMENT ISSUES • Access to emergency services • Interception of carriage services • Access to customer information

  12. EMERGENCY SERVICES • Calls made/received using existing services & equipment • No bearing on whether service falls within ‘SETS’ definition • No change to application of current rules • No adverse affect on access to emergency services

  13. INTERCEPTION • ENUM doesn’t carry traffic, set-up calls • All calls carried by CSPs on existing networks • No change to carriers/CSPs legislative obligations • No impact on agencies capacity to intercept communications

  14. ACCESS TO CUSTOMER INFO • Telco Act rules apply to carriers/CSPs • Under ENUM: • still access info from carriers/CSPs • may not be able to access certain ‘ENUM-specific’ info due to status of registry/registrar • Available under existing warrant process • Shortfall acknowledged - will be subject to review

  15. FURTHER INFORMATION • Email queries: enum@aca.gov.au • ACA website: www.aca.gov.au • ITU website: www.itu.int • Phone: Robert Urquhart (03) 9963 6713

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