DUST Duplex Universal Speech and Text e-Inclusion - PowerPoint PPT Presentation

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DUST Duplex Universal Speech and Text e-Inclusion

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DUST Duplex Universal Speech and Text e-Inclusion The work of STF 267 A project funded by the European Union – PowerPoint PPT presentation

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Title: DUST Duplex Universal Speech and Text e-Inclusion


1
DUST Duplex Universal Speech and Text
e-Inclusion
  • The work of STF 267
  • A project funded by the European Union

2
This presentation
  • Describes what is needed
  • Describes challenges of texting
  • Suggests how to overcome them
  • Describes some history of the present situation
  • Describes the DUST concept
  • Describes some implementations
  • Outlines the ETSI Guide

3
The Team
  • Wally Mellors - STF leader
  • Scott Cadzow
  • Ed Fitzgerald
  • Gunnar Hellstrom

4
Text user requirements
  • To have equal accessibility
  • To be able to communicate with others worldwide
  • As easily as speech communication

5
What is needed
  • Conversation in real time by text and voice
  • Duplex working (two way simultaneous)
  • Simple call set up and clear down
  • Progress information in text form
  • Provision of relay services
  • Access to emergency services
  • Provision for signing and lipreading
  • Similar to an ordinary telephone call

6
The challenge of texting
  • Instant messaging and SMS are popular text
    services
  • They are not equivalent to Voice telephony
  • No natural conversation flow
  • Is an answer coming?
  • Shall I send more text?
  • Resulting in disjointed conversation
  • Conversational Text is needed to complete the
    suite of telecom services

7
Problems with fluency
  • Simon In the office... says
  • Hi - How is your meeting going? Well?

Claude - In Paris - Back on Monday says Yes -
all is fine!
Simon In the office... says Is George in the
same meeting?
Simon In the office... says Could you bring
something back from Paris for me?
Claude - In Paris - Back on Monday says No!
Simon In the office... says Oh but its for
my girlfriends birthday and Ill repay the
favour please!
Claude - In Paris - Back on Monday says No!!
George phoned and said he couldnt make it as he
is sick! Something he ate.
Claude - In Paris - Back on Monday says Sorry.
What is it you want me to get for your girlfriend?
8
What is text conversation?
  • Text appears at each end character by character
    as it is typed
  • The two parties have the feeling of being in
    continuous contact
  • Just as in a spoken conversation

User A
User B
Why do you need character by
character transmission? Because then you get
a feeling of being continuously in touch .
Yes, I see, I can
almost read your thoughts as

you express them. No waiting. Good!
9
A bit of history
  • Text telephony started in America with old
    teletype machines in the 1960s
  • Various other Countries started with newer
    improved terminals
  • Unfortunately - There was no harmonisation
  • Result 5 different systems in Europe
  • Worse They cant talk to one another

10
Result
  • Deaf users caught up in generally national
    systems
  • With full text access limited to other deaf
    textphone users
  • Seven kinds of legacy PSTN textphones
  • Will not disappear tomorrow
  • ITU-T V.18 compatible with all
  • Most deaf users do not have access to 112
    emergency services

11
The DUST concept
  • D - Duplex simultaneous send and receive
  • U Universal - Worldwide on all networks
  • S Speech in both directions
  • T Text with conversational flow

12
The DUST service
  • Simultaneous text and voice no mode switching
  • In a mainstream environment
  • Using only open and available standards
  • Duplex no need for turn taking
  • Easy call set - up
  • Full network services
  • Supplementary services
  • Emergency calls
  • Provision for multimedia

13
Services
  • Basic call
  • Supplementary services. Hold, transfer, etc
  • Emergency service 112
  • Relay service with text support
  • Text ltgt voice
  • Hard to understand speech ltgt clear speech
  • Sign language ltgt voice
  • Interoperability between DUST Host environments
  • Interoperability with legacy systems

14
Coexistence via Gateway functions
15
The Future
  • Text Conversation available to ALL
  • Across all networks
  • Using open and available standards
  • All terminals interwork
  • Full legacy support
  • Texting anywhere anytime
  • With voice available
  • And with Video for signing and lipreading

16
This is the future
17
We work towards it
  • Thank you for listening
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