Focus group 3 interoperability
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FOCUS GROUP 3 Interoperability. Report to NRIC VI Council September 15, 2003 Cliff Naughton (Boeing). MISSION.

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FOCUS GROUP 3 Interoperability

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Focus group 3 interoperability

FOCUS GROUP 3Interoperability

Report to NRIC VI Council

September 15, 2003

Cliff Naughton (Boeing)

FG3 Report


Mission

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."

FG3 Report


Fg3 participants

FG3 Participants

FG3 Report


Fg3 status

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

FG3 Report


Scope of voip interoperability report

Public

Telecommunication

Services

PSTN

IP Networks

Network

Interconnection

Carrier

A

Carrier

B

IP

SP A

IP

SP B

Carrier

C

IP

SP C

Access

Networks

Wireless/

Satellite

Packet

Wireless/

Satellite

Circuit

Wireline

Packet

Wireline

Circuit

DSL

Cable

Users

Voice

VoIP

Data

VoIP

Data

Voice

VoIP

VoIP

Voice

Data

Data

Data

Data

Broadband

Access

Scope of VoIP Interoperability Report

FG3 Report


Scope of voip interoperability report1

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

FG3 Report


Also included

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

FG3 Report


Out of scope of voip interoperability report

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 provider’s network (e.g., Media Gateway Control, Megaco).

  • Non-consumer voice features (e.g., Centrex, GETS).

  • VoATM and VoMPLS

FG3 Report


Scope of voip interoperability report2

Non-ENUM

Private

Directory

Private

ENUM

SIP/H.323

SIP/H.323

Public ENUM

DNS

???

DNS

DNS

SIP/H.323

SIP/H.323

SIP, SIP-T, BICC,

H.323, CMSS

SIP/H.323

VoIP

QoS

IP

SP A

IP

SP B

SIP/H.323

VoIP

QoS

VoIP

QoS

MEGACO/

H.248

MEGACO/

H.248

Internal to

SP Interfaces

Internal to

SP Interfaces

TDM

SS7

VoIP=Voice/RTP/UDP/IP

PSTN

SP A

PSTN

SP B

TDM

In Scope

SS7

Out of Scope

SS7

SS7

LNP

TDM

TDM

Scope of VoIP Interoperability Report

FG3 Report


Significant gaps and recommendations

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

FG3 Report


Fg3 deliverable

FG3 Deliverable

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

FG3 Report


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