international telecommunication union plenary session on itu-t standards 15th biennial tdi...
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ITU-T July th 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 setsTRANSCRIPT
![Page 1: International Telecommunication Union Plenary Session on ITU-T Standards 15th Biennial TDI International Conference – Las Vegas, Nevada, USA Michael Day](https://reader035.vdocuments.us/reader035/viewer/2022062317/5a4d1b207f8b9ab0599950e9/html5/thumbnails/1.jpg)
International Telecommunication Union
Plenary Session on ITU-T Standards15th Biennial TDI International Conference –
Las Vegas, Nevada, USA
Michael DayProduct Manager BT TextDirect
"Okay, but what does it mean to me?”
- The evolution of textphone communications from a customer's perspective
![Page 2: International Telecommunication Union Plenary Session on ITU-T Standards 15th Biennial TDI International Conference – Las Vegas, Nevada, USA Michael Day](https://reader035.vdocuments.us/reader035/viewer/2022062317/5a4d1b207f8b9ab0599950e9/html5/thumbnails/2.jpg)
214-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
Contents
o Evolution of Textphones in UKo BT TextDirecto Why change?o The future IP Textphoneo Gateways
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314-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
Evolution of textphones in UK
o Not one protocol• V.23, V.21 and Baudot
o Lack of a standard implementationo Across the Europe Union
• EDT, variations of V.21 and V.23• Different character sets
![Page 4: International Telecommunication Union Plenary Session on ITU-T Standards 15th Biennial TDI International Conference – Las Vegas, Nevada, USA Michael Day](https://reader035.vdocuments.us/reader035/viewer/2022062317/5a4d1b207f8b9ab0599950e9/html5/thumbnails/4.jpg)
414-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
BT TextDirect
o How did we get to BT TextDirect?• RNID Typetalk• Regulation
o Network Promptso Improved relay accesso Removing the Crystal Ball
![Page 5: International Telecommunication Union Plenary Session on ITU-T Standards 15th Biennial TDI International Conference – Las Vegas, Nevada, USA Michael Day](https://reader035.vdocuments.us/reader035/viewer/2022062317/5a4d1b207f8b9ab0599950e9/html5/thumbnails/5.jpg)
514-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
BT TextDirect - Features
o Call set-up information in texto Ringing, Busy, NU tones in texto Access to relay at any timeo Improved compatibilityo Text Caller Returno Call anywhereo Text Rebateo Help desk
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614-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
BT TextDirect - How does it work?
o 18001 - Textphone Userso 18002 - Voice Userso 18000 - Textphone Emergencyo Relay Assisto International Access
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714-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
BT TextDirect - Demo
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814-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
BT TextDirect - Lessons learnt
o Music on holdo Answering machines ‘Beep’o Voice o Lack of standard implementation
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914-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
Why Change?
o Communication is two way• Duplex1 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
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1014-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
Solution
o Internet Protocolso Universal implementation
• Dial-up, Broadband, GMS, 3G, etc.o It can be done now
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1114-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
The IP Textphone
o Multimedia terminalo Additional features
• Text displayed the way you want it• Simultaneous voice• Who’s there?• What’s happening?• Emotion
o Will the ‘textphone’ is exist?
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1214-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
The IP Textphone
o Demoo Another method will produce more
communications problems - won’t it?
o The Textphone Gateway
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1314-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
Textphone Gateway
o Talk to the Gateway you talk to the World • Textphones don’t need to able to
talk to each othero Textphone + Textphone, Textphone
+ Voice, Textphone + PC, etc.o BT TextDirect
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1414-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
Advantages of Gateways
o Supports local protocolso Using IP over the network removes
the need for adapterso Contains the intelligence and
knowledge to handle calls
oLegacy textphones Legacy textphones are not excludedare not excluded
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1514-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
More Choice
TextphoneVoice
PC
Mutli-media Payphone WAP
SMS
GPRS
PDA
3 G
Gateway
![Page 16: International Telecommunication Union Plenary Session on ITU-T Standards 15th Biennial TDI International Conference – Las Vegas, Nevada, USA Michael Day](https://reader035.vdocuments.us/reader035/viewer/2022062317/5a4d1b207f8b9ab0599950e9/html5/thumbnails/16.jpg)
1614-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
Migration to IP
PSTN
o PSTN Textphone
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1714-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
PSTN and IP Textphones
PSTN
Internet
o PSTN and IP Textphones• Never the twain shall meet
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1814-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
The IP Aware Textphone
PSTN
Internet
o Connects to both PSTN and IP
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1914-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
How to find someone
PSTN
Internet
Locator
o Automatic call set-up
![Page 20: International Telecommunication Union Plenary Session on ITU-T Standards 15th Biennial TDI International Conference – Las Vegas, Nevada, USA Michael Day](https://reader035.vdocuments.us/reader035/viewer/2022062317/5a4d1b207f8b9ab0599950e9/html5/thumbnails/20.jpg)
2014-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
The Gateway
PSTN
Internet
Gateway
Locator
o Access by all
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2114-16 July 2003 15th Biennial TDI International Conference – Las Vegas, Nevada, USA
ITU-T
What Next?
o Improved functionalityo Improved availabilityo Needs international agreement on
IP Textphone communications
![Page 22: International Telecommunication Union Plenary Session on ITU-T Standards 15th Biennial TDI International Conference – Las Vegas, Nevada, USA Michael Day](https://reader035.vdocuments.us/reader035/viewer/2022062317/5a4d1b207f8b9ab0599950e9/html5/thumbnails/22.jpg)
International Telecommunication Union
Plenary Session on ITU-T Standards15th Biennial TDI International Conference –
Las Vegas, Nevada, USA
Thank youThank you