FOCUS GROUP 3 Interoperability

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FOCUS GROUP 3Interoperability

• Report to NRIC VI Council
• September 15, 2003
• Cliff Naughton (Boeing)

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MISSION

• The Committee FG3 will prepare analyses and,
  where appropriate, make recommendations for
  improving interoperability among networks to
  achieve the objectives that are contained in
  Section 256 of the Telecommunications Act of
  1996, with particular emphasis on ensuring "the
  ability of users and information providers to
  seamlessly and transparently transmit and receive
  information between and across telecommunications
  networks."

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FG3 Participants
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FG3 Status

• Positive, Co-operative team dynamic
• Team Composition (31 members)
• Service Providers (wireline, wireless), Vendors,
  OEMs, Customers, Industry associations
• Methodology
• Interoperability focus is Voice-over-IP networks
  with circuit switched networks, both wireline and
  wireless
• Gap analysis from published work of standards
  bodies (ITU, IETF, etc.) and accepted industry
  practices to derive best practices and
  recommended areas of research
• Report and Best Practices recommendations in
  Final Draft

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Scope of VoIP Interoperability Report
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Scope of VoIP Interoperability Report

• Allow any PSTN and VoIP user to place and receive
  calls from other users as identified by an
  assignment of a North American Numbering Plan
  (NANP) number to that user.
• Support portability of NANP numbers across
  providers for numbers assigned to VoIP users
• Provide the means for a VoIP device to access
  basic PSTN functions, such as using a telephone
  keypad to interact with a voice mail system
• Support PSTN essential services, such as E911,
  and TTY/TDD
• Provide minimum interoperation of VoIP service
  when features are not available on the other
  networks
• Identify VoIP signaling protocols used between
  service provider (and some enterprise) networks
• Identify methods to achieve VoIP calls of
  acceptable quality and delay
• Identify VoIP protocol standards that could be
  used to support consumer telephony features
  (e.g., caller ID, call waiting, hold, etc.)
• Provide support for CALEA

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Also Included

• Voice coding standards for user VoIP devices and
  gateways within and between service provider
  and/or enterprise networks
• Signaling protocols for user VoIP devices and
  gateways within and between networks (e.g., H.323
  and SIP).
• Quality of service requirements
• Support over certain types of access networks
  (e.g., satellite, 802.11 WiFi).
• Specifics of vendor interoperability, which is
  achieved through service provider
  interoperability

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Out of Scope of VoIP Interoperability Report
Only interfaces and protocols between networks or
service providers are in scope. Interfaces and
protocols between a network and a user/subscriber
or interfaces internal to a network or service
provider are out of scope

• Current PSTN and TDM network interoperability
• VoIP end-device (e.g., SIP phone) portability
  between service providers
• Best effort VoIP with no service provider
  involved (e.g., intra-enterprise or between VoIP
  devices over the Internet that do not involve a
  service provider).
• Protocols and interfaces used within a service
  providers network (e.g., Media Gateway Control,
  Megaco).
• Non-consumer voice features (e.g., Centrex,
  GETS).
• VoATM and VoMPLS

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Scope of VoIP Interoperability Report
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Significant Gaps and Recommendations

• ENUM (E.164 Number Mapping)
• Policy Decisions and Assignment of Administrators
• Synchronization of Public ENUM with LNP
• E911
• Need Solution for VoIP Mobility
• Network Management and Control
• Handling of Overload Scenarios between Different
  Technologies and Networks
• Use of Satellites and Wireless for Communication
  during Emergency Situations
• Coordination of QOS Metrics and Mechanism
  Standards
• Security Areas Relevant to VoIP
• CALEA, Firewalls, DNS, Denial of Service

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FG3 Deliverable

• Final Report to Council including Best Practices
  Recommendations at December 2003 meeting.