Progress Toward Standards for Accessible Total Conversation

1
Progress Toward Standards for Accessible Total
Conversation

• Toby Nixon
• Senior Program Manager, Exchange Server Voice
  Services
• Microsoft Corporation
• tnixon_at_microsoft.com

2
Acknowledgement

• Much of the content of this presentation was
  provided by Gunnar Hellström of Omnitor AB, who
  is Rapporteur for Question 9 on Accessibility to
  Multimedia for People with Disabilities in ITU-T
  Study Group 16

3
Total Conversation Combines Features of Video,
Text, and Voice Telephony
A standardized concept for telecommunication for
all.
Video telephony
Text telephony
Total Conversation for all in video, text and
voice
Voice telephony
4
Typical Use With Hard-of-hearing User
Hard-of-hearing Hearing
Voice
Speech-reading
Text when needed
5
Typical Use With Speech-impaired User
Speech impaired
Hearing
Text
Voice
Video for agreeing, turn taking and better
understanding
Voice for conversation
6
Typical Use Between Deaf and Hearing Users
Deaf Hearing
Text for the conversation
Video for recognition
7
Typical Use Between Deaf Users
Deaf Deaf
Video for Sign Language
Text for phone numbers, addresses
8
Typical Use Between Hearing Users
Hearing
Hearing
Voice
Text for for names, addresses
9
Use of Video Relay Services
Deaf
Video Relay Service
Hearing
Sign Language
Voice
Text for phone numbers
10
Use of Text Relay Servicewith Simultaneous Voice
Deafened
Text Relay Service
Hearing
Text
Voice
Voice
11
Example of a Total Conversation User Interface
Tal
Text in video call
Voice
Sign language
Also for Text Telephony
12
Total Conversation Standardization

• Started in Europe in ETSI HF from COST 219 and
  COST 220 in 1993, and USA from Gallaudet
  University
• The activity center ITU-T Study Group 16 on
  Multimedia Systems and Services
• Question 9 Accessibility to Multimedia
• Rapporteur 1997-2000 Gunnar Hellström
• Decisions in ITU 18 Feb 2000 made the standard
  family complete

13
V.18 Harmonizes Text Telephony
USA, Ireland, Australia
USA
Holland
Italy, Switzerland, Germany, Austria
France, Belgium
The whole world
Finland, Denmark, Norway, Sweden, UK
V.18 forms the bridge to new environments
14
Total ConversationA Standard Family for All
Networks
Started
Ready
Ready
Ready
Ready
Ready
H.323 / SIP
H.323 / SIP
Mobile system
Voice
Voice
and
and
T.140
T.140
video
video
RTP
TCP/
RTP
RTP
TCP/
RTP
TCP/
RTP
Mobile
Network
transmission
access
IP
DATA
MOBILE
MOBILE IP
H.248 Annex F Gateway for text, voice and video
(Determined Work Continues)
15
Total ConversationProducts are Emerging!

• 1999 First standardised Total Conversation
  terminal with T.140 and V.18 available
• 1999 Interpreter centre offers Total
  Conversation distance interpretation
• 2000 V.18-based Virtual Text Network announced
  in UK
• 2000 Major text telephone vendor in USA
  announced a semi-V.18 text telephone

16
Mobile Networking
Mobile Total Conversation
Interworking with the existing and emergingforms
of text conversation is the key to success
17
Total ConversationA Standard Family for All
Networks
Started
Ready
Ready
Ready
Ready
Ready
H.323 / SIP
H.323 / SIP
Mobile system
Voice
Voice
and
and
T.140
T.140
video
video
RTP
TCP/
RTP
RTP
TCP/
RTP
TCP/
RTP
Mobile
Network
transmission
access
IP
DATA
MOBILE
MOBILE IP
H.248 Annex F Gateway for text, voice and video
(Determined Work Continues)
18
Unified MessagingIncluding All Communication
Modes

• Anytime, anywhere access to a unified mailbox
  containing email, text, voice, video, fax, and
  pager messages
• Access from PC, PDA, telephone (IP or PSTN), web
  phone, TTY, two-way pager
• Automatic conversion between media types
• Speech user interfaces facilitate mobile use
• Microsoft is committed to TTY/V.18 support in
  Exchange Server-based unified messaging

19
Thanks!

• Questions?