1. International Telecommunication Union Plenary Session on ITU-T Standards 15th Biennial TDI International Conference – Las Vegas, Nevada, USA Michael Day Product Manager BT TextDirect "Okay, but what does it mean to me?” - The evolution of textphone communications from a customer's perspective

2. ITU-T 2 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA Contents o Evolution of Textphones in UK o BT TextDirect o Why change? o The future IP Textphone o Gateways

3. ITU-T 3 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA Evolution of textphones in UK o Not one protocol V.23, V.21 and Baudot o Lack of a standard implementation o Across the Europe Union EDT, variations of V.21 and V.23 Different character sets

4. ITU-T 4 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA BT TextDirect o How did we get to BT TextDirect? RNID Typetalk Regulation o Network Prompts o Improved relay access o Removing the Crystal Ball

5. ITU-T 5 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA BT TextDirect - Features o Call set-up information in text o Ringing, Busy, NU tones in text o Access to relay at any time o Improved compatibility o Text Caller Return o Call anywhere o Text Rebate o Help desk

6. ITU-T 6 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA BT TextDirect - How does it work? o 18001 - Textphone Users o 18002 - Voice Users o 18000 - Textphone Emergency o Relay Assist o International Access

7. ITU-T 7 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA BT TextDirect - Demo

8. ITU-T 8 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA BT TextDirect - Lessons learnt o Music on hold o Answering machines ‘Beep’ o Voice o Lack of standard implementation

9. ITU-T 9 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA Why Change? o Communication is two way Duplex 1 text and voice o Mainstream products No more adaptation - from day one o “A textphone on every desk” o or “A textphone in every pocket” 1 Duplex means simultaneous communications in both directions

10. ITU-T 10 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA Solution o Internet Protocols o Universal implementation Dial-up, Broadband, GMS, 3G, etc. o It can be done now

11. ITU-T 11 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA The IP Textphone o Multimedia terminal o Additional features Text displayed the way you want it Simultaneous voice Who’s there? What’s happening? Emotion o Will the ‘textphone’ is exist?

12. ITU-T 12 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA The IP Textphone o Demo o Another method will produce more communications problems - won’t it? o The Textphone Gateway

13. ITU-T 13 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA Textphone Gateway o Talk to the Gateway you talk to the World Textphones don’t need to able to talk to each other o Textphone + Textphone, Textphone + Voice, Textphone + PC, etc. o BT TextDirect

14. ITU-T 14 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA Advantages of Gateways o Supports local protocols o Using IP over the network removes the need for adapters o Contains the intelligence and knowledge to handle calls o Legacy textphones are not excluded

15. ITU-T 15 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA More Choice Textphone Voice PC Mutli-media Payphone WAP SMS GPRS PDA 3 G Gateway

16. ITU-T 16 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA Migration to IP PSTN o PSTN Textphone

17. ITU-T 17 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA PSTN and IP Textphones PSTN Internet o PSTN and IP Textphones Never the twain shall meet

18. ITU-T 18 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA The IP Aware Textphone PSTN Internet o Connects to both PSTN and IP

19. ITU-T 19 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA How to find someone PSTN Internet Locator o Automatic call set-up

20. ITU-T 20 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA The Gateway PSTN Internet Gateway Locator o Access by all

21. ITU-T 21 14-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA What Next? o Improved functionality o Improved availability o Needs international agreement on IP Textphone communications

22. International Telecommunication Union Plenary Session on ITU-T Standards 15th Biennial TDI International Conference – Las Vegas, Nevada, USA Thank you