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A Uniform Numbering Scheme for VRS Users and Providers. North American Numbering Council January 24, 2006. VRS Overview. Video Relay Service (VRS) is a form of Telecommunications Relay Service that enables persons

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A uniform numbering scheme for vrs users and providers

A Uniform Numbering Scheme for VRS Users and Providers

North American Numbering Council

January 24, 2006


Vrs overview
VRS Overview

Video Relay Service (VRS) is a form of Telecommunications Relay Service that enables persons

with hearing disabilities who use American Sign Language (ASL) to communicate with voice

telephone users through video equipment rather than through typed text.

  • Users are able to more fully express themselves through facial expressions and

  • body language, which cannot be expressed in text.

  • Calls flow back and forth like hearing calls

  • and both users have the ability to “interrupt”.

  • Because of more natural flow, the same conversation

  • is typically shorter in VRS than text-based TRS.

  • VRS Calls may be between ASL and either English

  • or Spanish.

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Trs ip vrs trends
TRS/IP/VRS Trends

VRS Exceeds

Interstate TRS

April 2005

Source: National Exchange Carriers Association (http://www.neca.org/media/0106TRSIPVRSCOMPARISON.pdf)

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Vrs growth
VRS Growth

Source: National Exchange Carriers Association (http://www.neca.org/media/0106VRSCURRENT.pdf)

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Vrs minutes
VRS Minutes

Source: National Exchange Carriers Association (http://www.neca.org/media/0106TRSStatus.pdf)

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Conceptual vrs implementation
Conceptual VRS Implementation

Internet

PSTN

Voice Communication

Between Hearing and CA

ASL Communication

Between Deaf and CA

Hearing User

Deaf or Hard of

Hearing ASL User

Communications Assistant

(Video Interpreter)

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Functional equivalence issue
Functional Equivalence Issue

  • System Works Fairly Well for Deaf-initiated Calls.

  • Hearing-initiated Calls Are More Problematic.

  • Hearing User Must Know:

    • Which VRS Provider to Contact;

    • The Type of “Identifier” Used by that provider;

      • Psuedo Phone Number

      • “Extension” Number

      • User Name

      • IP Address

    • The Specific Identifier for the Deaf Party

  • E911 PSAP Call-back Issue

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Vrs and the nanp
VRS and the NANP

  • Placing VRS Endpoints on the NANP would approach functional equivalency for Deaf and Hard-of-hearing.

  • Hearing User Dials Deaf User’s Unique 10-digit Telephone Number.

  • Carrier Identification Code used to Route to Appropriate VRS Provider.

  • Similar Implementation to VoIP.

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Hearing Initiated Call with NANP

10 Digit # Matched to CIC

And Routed to VRS Provider

VRS Provider maps 10 Digit #

To IP Address and Completes

Call Routing to VRS Endpoint

Internet

PSTN

Gateway

Hearing User

Dials 10 digit #

Deaf or Hard of

Hearing ASL User

Communications Assistant

(Video Interpreter)

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Thank you
Thank You

Contact Information

Mark A. Ekse

Communication Service for the Deaf, Inc.

102 N. Krohn Place

Sioux Falls, SD 57103

(605) 367-5760

[email protected]

Karen Peltz Strauss

KPS Consulting.

3508 Albemarle Street, NW

Washington, DC 20008

(202) 641-3849

[email protected],net

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