Real time text communication - making it real ITAG 2011
Real-time Text Communication:Making It Real(Jon Azpiroz, Karel Van Isacker)Presented by Karel Van Isacker (EPR)
The background● Voice communication ● Not possible for everyone ● Alternative manners (BSL over MSN, in the past ICQ, now AOL IM) ● But what about mobiles?● Quest for alternatives to traditional voice telephony that could be accessible across desktop and mobile communications devices.
The vehicle● FP7 AEGIS project ● Project title: – Open Accessibility Everywhere: Groundwork, Infrastructure, Standards ● Starting date: 1 September 2008 ● Duration: 48 Months ● Integrated Project (IP) within the ICT programme of FP7
The directions● FP7 AEGIS project ● Desktop accessibility – odt2Braille, odt2Daisy, Symbol support, … ● Web applications accessibility – ARIA, … ● Mobile accessibility – Tecla (mobile switch), …, and RTT● Available on iPhone/Android market, SourceForge, …
Background Of Text Communications● ICT pushed ● the device for the deaf (TDD) or teletypewriter (TTY) (1964) (also used for people with speech impairments) ● Problem: different textphone standards, need for landline
Background Of Text Communications● ICT pushed ● Short Message Service (SMS) (1984) ● First SMS message sent over the Vodafone GSM network (UK) on 3 December 1992, from a personal computer to an Orbitel 901 handset. Text was "Merry Christmas". ● Commercialised in 1993 (Nokia only handset manufacturer whose total GSM phone line supported user-sending of SMS text messages).
Background Of Text Communications● Some SMS numbers ● 2010: 6.1 trillion SMS text messages were sent. 192,192 SMS per second. ● SMS industry worth over $81 billion globally as of 2006.
Background Of Text Communications● Advantages of SMS ● Used by the hearing impaired community. ● Text-based, easy to use, affordable and mobile. ● Vibrating function of the handset alerts the user about a message.
Background Of Text Communications● Disadvantages of SMS ● Unreliable system ● No guarantee that an SMS message will get to its destination or will get to its destination quickly – Delay messages for minutes, days or even lose them completely. – Most common cause of delivery failure is due to destination busy, memory full or destination out of service. – Limited interactivity
Increase interactivity● Instant Messaging (IM) for mobile devices ● More interactivity as users can exchange messages faster and more efficiently. ● IM Messages are cheaper than SMS. ● Problem: lack of standardisation (BlackBerry, MSN, Google, AOL, Yahoo, ICQ, FaceBook, WhatsApp,…) – Few IM clients work with different networks (Pidgin for Win, InstantBird for Linux)
Increase interactivity● Instant Messaging (IM) for mobile devices ● Deaf users like IM for its interactivity, the possibility for both parties to type at the same time and the ability to display emotions through the use of emoticons. ● However, IM is not as interactive as voice communications. – delays in the conversations – they cannot interrupt each other
Real-time Text● Real-time text (RTT) is conversational text that is sent and received on a character by character basis.● A more natural, bi-directional flow of conversation takes place.● Pioneered by ICQ in 1996.● Based on standards (SIP + RFC4103) for interoperability
Real-time Text brought to the mobile● Based on J2ME ● Wide availability of the application is one of the most important requirements. ● Roughly 78% of the mobile phones sold in 2010 were inexpensive feature phones that run the Java Micro Edition (Java ME) environment. ● Application will be compatible in mobile devices with different OS such as Symbian or BlackBerry.
Real-time Text brought to the mobile● Functionality ● User should login with a user name and password to start using the applications. ● Once registered, the application provides three main functionalities: make / receive real-time text calls, see the call logs and manage the RTT contacts.
Real-time Text brought to the mobile● Functionality ● Select existing contact or type directly the RTT address of the other user.
Real-time Text brought to the mobile● Functionality ● Once the call is accepted by the other user – 2 text boxes appear – upper one show what the remote user is typing – lower box shows what user of device is typing.
Real-time Text brought to the mobile● User testing ● Spain, Belgium, Sweden, and the United Kingdom ● 26 users with hearing impairments ● 11 experts and 11 tutors● Feedback overall positive, and desire to have this functionality directly embedded in IM they use now● But: 2 window conversation is new
Real-time Text brought to the mobile● Next version (by August 2012) ● Chat based user interface (both conversations shown in same screen). ● New modalities of communication. ● Character-by-character, versus word-by- word. ● New client will be developed for LWUIT Java devices. This will make RTT compatible with touch screen devices.
Any questions?● Jon Azpiroz ● Fundación Vodafone España ● Spain ● firstname.lastname@example.org● Karel Van Isacker ● European Platform of Rehabilitation ● Belgium ● email@example.com