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VoIP Location WG

VoIP Location WG. Scope and goals Develop a list of VoIP location data requirements (based on wireline/wireless and adapted for VoIP) Devise / recommend a method for providing location information for residential VoIP customers

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VoIP Location WG

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  1. VoIP Location WG • Scope and goals • Develop a list of VoIP location data requirements (based on wireline/wireless and adapted for VoIP) • Devise / recommend a method for providing location information for residential VoIP customers • Specify interface (XML schema) for non-call setup associated location validation & updates

  2. VoIP Location Data • Methodology • Wireline/Wireless location data requirements as Basis (NENA 02-010, 02-011 and E911 Requirements) • Identify purpose & use of data elements by PSAP • Consider context of remaining data elements in VoIP architectures – I2 and I3 • Identify any VoIP-specific needs • Identify either: means to support location data requirements in I2 and I3 or “holes” to be filled

  3. Location Data RqmtsTimeline Objectives Contrib. to IETF geopriv WG VoIP Location Data Rqmts draft TID TID ready for approval VLWG formed Data Elem. identified Tampa 6/05 TDC 3/04 Fall 9/05 Yr End 12/04 TDC 3/05

  4. Residential IP • Requirements • At least equivalent functionality to traditional wireline service. Characteristics of traditional service include: • Civil address (street address) provided – virtually always available, and pre-validated by service provider • Fixed location (irrespective of caller’s actual movement, e.g., with “cordless” phone)

  5. Residential IP (2) • Classes of methods considered for determination of location • Manual entry by user into device • Provisioned by Voice Service Provider • External, automated, assisted determination and download of location object (e.g., DHCP server; broadcast from WiFi access point) • Device self-determination (e.g., GPS)

  6. Residential IP (3) • Methodology: Evaluate solutions in context of overall requirements for phased architectures • VoIP Migratory WG (I2) • Elements/Interfaces affected by data requirements • VoIP Long Term Definition (I3) • How to support emergency callers with self-service VSP? • Objective for Planned Output of WG • Recommendations documented in input to TID for fall conference

  7. Residential IP Task Timeline Objectives Preliminary Findings input to VMWG & LTD Identify Alternatives & Evaluation Criteria VLWG formed Draft Recommend- ations for Approval Tampa 6/05 TDC 3/04 Fall 9/05 Yr End 12/04 TDC 3/05

  8. Data Interface Task • VoIP Migratory and LTD WG output: interfaces to existing databases that need to be defined or recommended by VLWG • ALI to VoIP Positioning Center interface – e.g., E2+, PAM – no new work identified for VLWG • New near real-time Location Validation interface needed

  9. Loc. Validation I/F • Work Plan • Elements involved in data exchange • Define information flows • Identify/specify protocol to be used • Security considerations • Working jointly with members of VMWG

  10. Validation InterfaceTimeline Objectives Interface description ready for approval Validation interface –research parameters, protocols VLWG formed Draft proposal Tampa 6/05 TDC 3/04 Fall 9/05 Yr End 12/04 TDC 3/05

  11. VLWG Members

  12. VLWG Members

  13. Nadine Abbott Senior EngineerSAIC – Telcordia Technologies

  14. RichardDickinson Manager, Public SafetyTelecommunication Systems, Inc.

  15. VoIP vs Wireless • Similar technical challenges • Access to local E911 infrastructure • Mobile callers • Similar technical solutions • CAS vs NCAS

  16. VoIP Definitions • Static VoIP User: Caller who uses the same physical IP port at all times. • Nomadic VoIP User: Callers who change ports, but who are not necessarily wireless or in motion. Technology exists to locate a nomadic user. • Wireless VoIP User: Wireless VoIP devices already exist (WiFi), but location technology for wireless VoIP is not yet evolved.

  17. Features of Proposed I2 Solution • Based on wireless NCAS concept • No PSAP Upgrades Required • Works with 8-digit CAMA • Works with wireless “Phase 0” PSAPs • Works with Stand-alone ALI databases • No ALI Upgrades Required • Works with existing ALI connections, including E2, E2+, NENA, PAM, and “push” • No Selective Router Upgrades Required • Works with mobile users

  18. Challenge #1: MSAG Valid Addresses • Most VoIP addresses will be self-reported by user at time of log-in or at time of purchase • Not practical to require PSAPs to validate all user addresses, as they do with wireless cell sites. • Recommendation: Migratory committee exploring methods to validate addresses via access to centralized or distributed MSAG database

  19. Challenge #2: ESRK Management • Use of wireline ESNs will require large numbers of ESQKs. • Recommendation: Assign ESQKs to MPC vendors in lieu of VoIP vendors • Reduces required quantity of ESQKs (All VoIP vendors share same ESQKs per PSAP) • Simplifies single point of contact for PSAPs (MPC NOC) • Centralized authority for issuing ESQKs?

  20. Challenge #3: Access to Selective Router • Most VoIP vendors do not have dedicated local access from TDM gateways to selective routers. • Recommendation: MPC providers or 3rd Party CLECs can provide TDM gateways and dedicated access to local selective routers

  21. Questions Dick Dickinson Telecommunication Systems Inc (TCS) 2200 Alaskan Way Seattle WA 98121 206-792-2224 ddickinson@seattle.telecomsys.com

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