Transcript Total Conversation

Total Conversation
The tool for equal opportunities in
telecommunications
Gunnar Hellström
Omnitor AB
June 2002
[email protected]
www.omnitor.se
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Total Conversation combines features of
video telephony, text telephony and voice telephony
Total conversation combines three features
A standardised concept for telecommunication for all.
Video telephony
Text telephony
Total Conversation for all in
video, text and voice.
Voice telephony
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Example of a Total Conversation
user interface
A Total Conversation user interface
Call control
Tal
Voice
Sign language
Text in
multimedia
Teckenspråk
call.
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Also for Text Telephony
Typical use between
deaf users
Deaf
Deaf
Video for Sign Language
Text for
phone numbers, addresses …
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Typical use with
hard-of-hearing user
Hard-of-hearing
Hearing
Voice
Speech-reading
Text when needed
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Typical use between
deaf and hearing users
Deaf
Hearing
Text for the conversation
Video for recognition
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Total Conversation: usability increase
in personal communication
• The combination of video, text and voice in conversation is
a very strong accessible service of value for all.
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Deaf
Hard-of-hearing
Speech impairments
Deaf-blind
Aphasia
Older
People in noisy environments
People in environments requiring silence
When submitting a booking number, and address etc.
When taking a language course on distance
All
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ITU-T T.140, the common
base for text conversation
• Extremely simple text chat protocol
• Unicode UTF-8 coding
• Included in all Multimedia protocol
standards for fixed and mobile networks.
What is the street
address?
Alameda 34
Example of T.140 display
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Total Conversation a complete standardized family
ETSI, ITU, IETF, 3GPP approved
IETF SIP
H.323
T.140
Voice
and
video
RTP H.245
T.140
Voice
and
video
T.120 Data
conferencing
T.140
T.134 T.124
RTP SDP
3G.324
H.324
H.320
Voice
and
video
T.140
H.224
T.140
Text telephony
Voice
and
video
AL1 H.245
T.140
Voice
and
video
AL1 H.245
GCC
H.225.0
Network
access
IP
IP
T.140
Equali
zer for
legacy
Trans
parent
T.140
voice
CTM
Audio coding
IP
Network
transmission
GSM
Mobile system
Mobile system
T.123
H.221
H.223
H.223
Network
access
V.34/V.80
Mobile
transmission
DATA ISDN PSTN CS MM
Mobile
CONF.
V.18
PSTN
Mobile
transmission
GSM
text
H.248 Text - aware Gateway (Annex F)
Total Conversation service defined in ITU-T F.703
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Video quality for sign language
and lip reading – a prerequisite
• Video communication quality level needed
for signing and lip reading.
• Requirements are documented in an ITU
document. (ITU-T Series H, Suppl 1 )
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Video quality for sign language
and lip reading is good for all
Smoothness of motion:
> 20 pictures per second. 25
enough for rapid motion in
fingerspelling.
in practice.
Sharpness:
> 240 * 200 pixels in the
picture.
enough for small details –
fingers, eye-direction,
mouth...
352*288 in practice, ”CIF”.
Latency:
< 400 ms from camera to
short enough for undisturbed receiver´s screen
turn-taking.
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Service Level
• The Total Conversation service is defined in ”ITUT F.703 Multimedia conversational service
description”
• The mobile corresponding definition is in 3GPP
22.226 Global Text and Total conversation service
• Text telephony is a limited subset of Total
Conversation, also defined in the same specs.
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Transport Level
• Each Multimedia environment needs its own transport
standards for the media streams.
• Available now for:
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IP for ITU-T H.323
IP for IETF SIP, also used in 3GPP Mobile IP Multimedia
Circuit switched in H.324 and in 3G.324
ISDN in H.320
Mobile voice channel – CTM modem in 3GPP
Text telephony
• Gatewaying is also specified in ITU-T H.248 Annex F
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Total Conversation
Implementations
• Allan-10 from Omnitor was the first Total
Conversation product. – for ISDN
• Allan-10 now makes communication easy
for many deaf users at work.
• Tandberg videoconferencing units for ISDN
now support Total Conversation
• Allan eC from Omnitor is the first product
for IP based Total Conversation.
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Allan eC
• Lets you communicate in
all languages: signed, typed, spoken…
Min mail-adress är [email protected]
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Allan eC features
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IP Total Conversation through H.323
Good video quality
PC based
Univergsal alerting system connection
Multifunction opportunity – text telephone in the
same user interface
• Gateway configuration IP text telephony – PSTN
text telephony (V.18).
• Powered by eConf from France Telecom
• The initial base for an eTEN proposal.
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Allan eC text telephony
interoperability
V.18 modem
PSTN
IP
Multifunction terminal mode
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Allan eC text telephony
interoperability
H.323 Total Conversation
terminal
Allan eC
H.323 / V.18
IP
V.18 modem
PSTN
Text gateway
IP
Text gateway mode
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Voice telephony interoperability
IP Total Conversation
terminal
IP networks
IP Telephony gateway
PSTN
IP Voice
telephone
IP Total Conversation
terminal
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Conclusion
• Total Conversation is a standardised concept.
• Total Conversation brings equal
opportunities to telecommunication
• Total Conversation is designed for all
• Total Conversation is a smooth way to harmonization
and interoperability
• Total Conversation is ready to use
• Total Conversation is ready for rollout in an
eTen project
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eTEN-project
• TEN = TransEuropean Networks
From Technical Validation
through
Organisational Coordination
&
“Business Models” confirmation
to
Service Provision
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Vision
• Everyone, everywhere should be able to
communicate seamlessly in Europe with
everyone else and to access information &
services in his/her preferred mode of
expression to a price comparable to todays
telephone costs.
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Application areas in the
eTEN project
• Social contacts
– Hearing impaired, deaf, deaf-blind, aphasia, all
• Elderly care and harmony in ageing
– Care service centres, older people, relatives
• E-learning
– Personal contacts in distance education. E.g. Language courses.
• Mediated personal communication
– Sign language relay services and distant interpreting
– Speech – to – speech with visual support
– Text relay services
• Government agencies accessible for all
– Serve all citizens in the media that suits both parties.
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Partner roles
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Co-ordinator
Technology providers
Broadband, Wireless and 3G Operators
Care providers
E-learning providers
Mediated service providers
Accessible authority providers
Evaluation and assessment
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Time schedule
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Project outline
Partner search
Draft description
Call
Application deadline
Evaluation
Negotiations
Project start
June – Sep 2002
June - Oct 2002
Nov – Dec 2002
Nov 2002
January 2003
Feb-Mar 2003
Apr – May 2003
June -July 2003
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