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Implementing Telephone Numbers for VoIP

presentation to North American Numbering Council 15 March 2005 Washington DC USA. Implementing Telephone Numbers for VoIP. Tony Rutkowski Vice-President of Regulatory Affairs mailto:trutkowski@verisign.com Tom Kershaw Vice-President of VoIP Services mailto:tkershaw@verisign.com.

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Implementing Telephone Numbers for VoIP

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  1. presentation to North American Numbering Council 15 March 2005 Washington DC USA Implementing Telephone Numbers for VoIP Tony RutkowskiVice-President of Regulatory Affairsmailto:trutkowski@verisign.com Tom KershawVice-President of VoIP Servicesmailto:tkershaw@verisign.com

  2. The Relevant Immediate Requirements • we require [VoIP E.164 number users] • to comply with • the Commission’s other numbering utilization and optimization requirements • numbering authority delegated to the states, and • industry guidelines and practices (See 47 C.F.R. Part 52) • including filing the Numbering Resource Utilization and Forecast Report (NRUF) • to file any requests for numbers with the Commission and the relevant state commission at least thirty days prior to requesting numbers from the NANPA or the PA --FCC SBCIP Order, 1 Feb 2005 • Numbering Administration. 47 USC § 251(e)

  3. Part 52 - Numbering

  4. Numbering Dependencies: regulatory and operational • National Security and Critical Infrastructure Protection • priority access during or after disasters (NS/EP) • public safety emergency and law enforcement assistance (CALEA) • network attack mitigation (NS/EP) • Consumer Requirements • consumer emergency calls (E112/E911) • consumer protection and privacy (Do Not Call; CANSPAM) • authenticated caller or sender identification • disability assistance (TRS) • universal service • Competition and Settlements Requirements • number portability (1996 Act) • service interoperability (Computer III) • intercarrier compensation (ICF) • Operations Requirements • service provider coordination • fraud detection and management • default service and routing options • transaction accounting

  5. Architecting viable solutions for numbering systems PSTN/CMRS SS7 Internet NGN IP-Enabled Internet Number Resolution Includes border gateway resolvers, ENUM resolvers, 800 LERG ResolutionServices ResolutionServices ResolutionServices G/W ResolutionServices Others NPAC Number Directories LIDB IRIS-EREG G/W DA

  6. Needed Numbering Related Capabilities • In the SS7 signalling infrastructure • Ability to discover, resolve, and use VoIP telephone numbers • Need: identify the number as VoIP and propagate the gateway information • Ability to discover and access VoIP number directories • Need: identify the number as VoIP and propagate the directory information • In the IP-Enabled signalling infrastructure • Ability to discover, resolve, and use VoIP telephone numbers • Need: accommodate multiple platforms and implementations • Ability to discover and access VoIP number directories • Need: generic capability. IRIS-EREG does this, but needs North American specific regulatory and operational extensions plus explicit discovery mechanism • Need: gateway arrangements between IRIS and SS7 based directory systems

  7. Needed Steps • ATIS Industry Numbering Committee (INC) and potentially other ATIS standards bodies to develop definitive operational requirements • ATIS Working Groups to develop needed standards • Most urgent standards have a high priority • NANC review of any policy issues with INC platform, provides advice to the Commission • Commission adopts needed requirements in 99-200 and 04-36 proceedings

  8. Numbering Developments Worldwide • Meta • Large-scale focus on Next Generation IP-Enabled Network (NGN) frameworks, capability sets, architectures, operational requirements, and standards • Includes ITU-T, ETSI, 3GPP, Parlay, ATIS, TIA, Cable Labs, IETF, OASIS, etc… • Global – ITU-T • Study Group 2 • E.164 implementations • Not much ENUM takeup, no apparent interest in “public” ENUM • Continuing domain, security and control issues • Significant Asia-Pacific region ENUM experiments appear to be all VPN-based, emulating existing SS7 Intelligent Network infrastructure • Possible other number bases, e.g., E.212, could be used for communication • Number portability recommendation stalled • E.FIND directory service work approved as correspondence group (see annex) • Study Groups 4 and 17 • M.1400 unique global provider identifier initiative (ICC [OCC in U.S.]) – expansion to include all providers and considering “rapid resolution” capabilities • Key emerging global issue: geographic relationship of numbers • In a nomadic as well as VoIP world, substantial geographic portability is unavoidable • Jurisdictions (countries and locals) need to consider how to accommodate and manage the use effectively

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