Total Conversation Communication for all with SIP based

Total Conversation Communication for all with SIP based Multimedia calls Gunnar Hellström, ITEXPO, Miami Jan 2010 ITEXPO Miami, 21 January 2010 International Telecommunication Union

Total Conversation puts the user in the center of The way you call every the communication society. day must also be the When all have interoperable Total Conversation. many calls can go direct way you call in emergency The user in the center of inclusive communication Same terminal for all contacts Users with Total Conversation or Real-time text Devices Emergency services 112, 911, . . . user with communication disability Voice user communication direct or via relay services Voice telephone users ITEXPO Miami, 21 January 2010 Text, Sign & Caption Relay Services Relay services for mode conversion when users have no common way of communication International Telecommunication 2 Union

Total Conversation, 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. ITEXPO Miami, 21 January 2010 Enables consistent voice, text and video communication at the same time and in real time. 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 3 GPP 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 REACH 112. International Telecommunication 3 Union

Total Conversation example Call with media: Real-time text, video, voice. -desirable for all -essential for people with disabilities -desirable for everyday calls -essential for emergency calls (click to play) Example: A deaf-blind woman in a Total Conversation call, producing sign-language and receiving text. ITEXPO Miami, 21 January 2010 International Telecommunication 4 Union

Total Conversation Interoperability Other Networks Mobile phone GATEWAY ( closed systems, other standards) Other Protocols GATEWAY Personal Computers (text, voice and video) IP text device IP network ITEXPO Miami, 21 January 2010 Old PSTN network PSTN To IP Gateway PSTN Phones Traditional Textphones Computer, PDA, other Text device with Textphone capability (directly or indirectly) SIP with RFC 4103 for Real-time Text video and audio Vo. IP Phones Vo. IP Mobile phone with RTT (voice only) Focus on SIP, allow variations through gateways 112 Text, video and Voice Vo. IP Phone International Telecommunication 5 Union

REACH 112 EU Project Network with interoperable Total Conversation services ITEXPO Miami, 21 January 2010 Multiple providers Multiple manufacturers Interoperability by using same interchange protocol SIP with T. 140/RFC 4103 real-time text, video and audio. International Telecommunication SIP peering 6 Union No isolated islands

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 ITEXPO Miami, 21 January 2010 International Telecommunication 7 Union

Gunnar Hellström gunnar. hellstrom@omnitor. se www. omnitor. se Acknowledgement: Some pictures and video clips were provided from the Telecommunication Access International ITU-T Workshop on Rehabilitation Engineering Accessibility Geneva, 2 November 2009 Telecommunication Research Center of the University of Wisconsin, funded by NIDRR. 8 Union