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Introduction of ENUM in Australia

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INTRODUCTION OF ENUM IN AUSTRALIA

Robert Urquhart Telecommunications Licensing Group Australian Communications Authority (ACA) 5 December 2003

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

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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

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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

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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

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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

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PRACTICAL OPERATION
(3 of 3)

Response sip:pc@xyz.com.au

DNS-Server

Query 0.5.1.1.1.7.2.6.3.1.6.e164.arpa?

“Call setup”

Dial ENUM no. +61362711150

Sip sip:pc@xyz.com.au

Gateway

Sip server
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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

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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

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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

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LAW ENFORCEMENT ISSUES
• Access to emergency services

• Interception of carriage services
• Access to customer information

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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

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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

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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

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


				
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