total conversation the tool for equal opportunities in telecommunications
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Total Conversation The tool for equal opportunities in telecommunications. Gunnar Hellström Omnitor AB June 2002 [email protected] www.omnitor.se. Total conversation combines three features. - PowerPoint PPT PresentationTRANSCRIPT
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Total Conversation
The tool for equal opportunities in telecommunications
Gunnar HellströmOmnitor AB
June 2002
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Total Conversation combines features of video telephony, text telephony and voice telephony
Video telephony
Text telephony
Voice telephony
Total Conversation for all in video, text and voice.
A standardised concept for telecommunication for all.
Total conversation combines three features
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Tal
Teckenspråk
Example of a Total Conversation user interface
Voice
Sign language
Also for Text Telephony
Text in multimediacall.
Call control
A Total Conversation user interface
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Typical use between deaf users
Deaf DeafVideo 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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Deaf Hearing
Text for the conversation
Video for recognition
Typical use between deaf and hearing users
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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.– 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
H.248 Text - aware Gateway (Annex F)
V.18
Text telephony
Transparent
Equalizer for legacy
T.140
PSTN
H.223
V.34/V.80
AL1 H.245
H.324
T.140Voiceand
video
PSTN
T.124GCC
T.134
T.120 Dataconferencing
T.123
T.140
DATACONF.
H.323
H.225.0
Networkaccess
T.140
RTP H.245
Voiceand
video
IP
H.221
Networkaccess
H.320
H.224
T.140Voiceand
video
ISDN
3G.324Mobile system
H.223
Mobiletransmission
Voiceand
video
AL1 H.245
T.140
CS MMMobile
RTP
IETF SIP
SDP
IP
Networktransmission
Voiceand
videoT.140
IP
GSMMobile system
CTM
Audio coding
Mobiletransmission
voiceT.140
GSM text
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: enough for rapid motion in fingerspelling.
> 20 pictures per second. 25 in practice.
Sharpness:enough for small details – fingers, eye-direction, mouth...
> 240 * 200 pixels in the picture. 352*288 in practice, ”CIF”.
Latency:short enough for undisturbed turn-taking.
< 400 ms from camera to receiver´s screen
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Service Level
• The Total Conversation service is defined in ”ITU-T 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:– 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
• 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
V.18 modem PSTN
IP
Text gateway mode
Allan eC H.323 / V.18
Text gatewayIP
H.323 Total Conversation terminal
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Voice telephony interoperability
IP Telephony gateway PSTN
IP Voice telephone
IP Total Conversation terminal
IP Total Conversation terminal
IP networks
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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 NetworksFrom 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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• Co-ordinator• Technology providers• Broadband, Wireless and 3G Operators• Care providers• E-learning providers• Mediated service providers• Accessible authority providers• Evaluation and assessment
Partner roles
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Time schedule• Project outline June – Sep
2002
• Partner search June - Oct 2002
• Draft description Nov – Dec 2002
• Call Nov 2002
• Application deadline January 2003
• Evaluation Feb-Mar 2003
• Negotiations Apr – May 2003
• Project start June -July 2003