Michael Day

1
Michael Day
"Okay, but what does it mean to me? - The
evolution of textphone communications from a
customer's perspective

• Product Manager BT TextDirect

2
Contents

• Evolution of Textphones in UK
• BT TextDirect
• Why change?
• The future IP Textphone
• Gateways

3
Evolution of textphones in UK

• Not one protocol
• V.23, V.21 and Baudot
• Lack of a standard implementation
• Across the Europe Union
• EDT, variations of V.21 and V.23
• Different character sets

4
BT TextDirect

• How did we get to BT TextDirect?
• RNID Typetalk
• Regulation
• Network Prompts
• Improved relay access
• Removing the Crystal Ball

5
BT TextDirect - Features

• Call set-up information in text
• Ringing, Busy, NU tones in text
• Access to relay at any time
• Improved compatibility
• Text Caller Return
• Call anywhere
• Text Rebate
• Help desk

6
BT TextDirect - How does it work?

• 18001 - Textphone Users
• 18002 - Voice Users
• 18000 - Textphone Emergency
• Relay Assist
• International Access

7
BT TextDirect - Demo
8
BT TextDirect - Lessons learnt

• Music on hold
• Answering machines Beep
• Voice
• Lack of standard implementation

9
Why Change?

• Communication is two way
• Duplex1 text and voice
• Mainstream products
• No more adaptation - from day one
• A textphone on every desk
• or A textphone in every pocket

1 Duplex means simultaneous communications in
both directions
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Solution

• Internet Protocols
• Universal implementation
• Dial-up, Broadband, GMS, 3G, etc.
• It can be done now

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The IP Textphone

• Multimedia terminal
• Additional features
• Text displayed the way you want it
• Simultaneous voice
• Whos there?
• Whats happening?
• Emotion
• Will the textphone is exist?

12
The IP Textphone

• Demo
• Another method will produce more communications
  problems - wont it?
• The Textphone Gateway

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Textphone Gateway

• Talk to the Gateway you talk to the World
• Textphones dont need to able to talk to each
  other
• Textphone Textphone, Textphone Voice,
  Textphone PC, etc.
• BT TextDirect

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Advantages of Gateways

• Supports local protocols
• Using IP over the network removes the need for
  adapters
• Contains the intelligence and knowledge to handle
  calls
• Legacy textphones are not excluded

15
More Choice
Textphone
Voice
3 G
PC
PDA
Gateway
Mutli-media Payphone
GPRS
WAP SMS
16
Migration to IP

• PSTN Textphone

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PSTN and IP Textphones

• PSTN and IP Textphones
• Never the twain shall meet

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The IP Aware Textphone

• Connects to both PSTN and IP

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How to find someone
PSTN
Locator
Internet

• Automatic call set-up

20
The Gateway

• Access by all

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What Next?

• Improved functionality
• Improved availability
• Needs international agreement on IP Textphone
  communications

22
Thank you