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Total Conversation Communication for all with SIP based Multimedia calls

Total Conversation Communication for all with SIP based Multimedia calls. Gunnar Hellström,. ITEXPO, Miami Jan 2010. Total Conversation puts the user in the center of the communication society. The way you call every day must also be the way you call in emergency.

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Total Conversation Communication for all with SIP based Multimedia calls

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  1. Total ConversationCommunication for all with SIP based Multimedia calls Gunnar Hellström, ITEXPO,Miami Jan 2010

  2. Total Conversation puts the user in the center of the communication society. The way you call everyday must also be the way you call in emergency When all have interoperable Total Conversation. many calls can go direct The user in the center of inclusive communication Text, Sign & Caption Relay Services Same terminal for all contacts Users with Total Conversation or Real-time text Devices user with communication disability Voice user communication direct or via relay services Relay services for mode conversion when users have no common way of communication Voice telephone users Emergency services 112, 911,...

  3. TotalConversation, communication in many ways Real-time text: Text is sent at the same flow as it is typed. Near character-by-character. Gives good contact and efficient dialogue in intensive calls. Enables consistent voice, text and video communication at the same time and in realtime. Media: Audio for speech. Video for sign language, lip reading, and general showing Real-time text for good text contact for part or whole conversation An open standardised concept, originally from ITU, now also in IETF, ETSI and 3GPP standards. Defined in ITU-T F.703 The base for conversational services for all. Appreciated in implementations with thousands of users. General concept, but SIP is the main implementation environment A small but important extension of the videophone concept by adding real-time text. Now supported to grow through the EU deployment project REACH112.

  4. Call with media: Real-time text, video, voice.-desirable for all-essential for people with disabilities-desirable for everyday calls-essential for emergency calls Example: A deaf-blind woman in a Total Conversation call, producing sign-language and receiving text. Total Conversation example (click to play)

  5. Old PSTN network Total Conversation Interoperability 112 Other Networks ( closed systems, other standards) PSTN Mobile phone GATEWAY PSTN Phones Other Protocols PSTN To IP Gateway GATEWAY Traditional Textphones SIP with RFC4103 for Real-time Text video and audio Computer, PDA, other Text device with Textphone capability(directly or indirectly) Personal Computers (text, voice and video) IP text device IP network VoIP Phones (voice only) VoIP Mobile phone with RTT Text, video and Voice VoIP Phone Focus on SIP, allow variations through gateways

  6. REACH112 EU Project Network with interoperable Total Conversation services Multiple providers Multiple manufacturers Interoperability by using same interchange protocol SIP with T.140/RFC 4103 real-time text, video and audio.SIP peering No isolated islands

  7. SIP at the heart of Total Conversation • Media negotiation for all three media carried in SDP. • RTP based media may go directly between terminals. Video, Real-time text and Audio. • Connection possible with subsets of media • Firewall and router passing through mature technologies. • SIP-aware routers • Remote SIP Connectivity

  8. Gunnar Hellström gunnar.hellstrom@omnitor.se www.omnitor.se Acknowledgement: Some pictures and video clips were provided from the Telecommunication Access Rehabilitation Engineering Research Center of the University of Wisconsin, funded by NIDRR.

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