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How Does VoIP Impact Speech Recognition?

• Scott WiederDirector of Market
  DevelopmentAugust 8, 2006, 200pm - 330pm

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Outline

• Convergence of data and voice
• Speech deployment with IP
• Standards
• The downside
• Cost of Ownership impact

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Converged Infrastructure
Tomorrow
Today
Database
Data Services
Consolidated databases
Application logic and database
Voice Infrastructure
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Convergence Benefits

• Reduced capital and operational costs
• Case study of 1,000 person firm realized 20
  savings per year
• Virtual workforce
• Allow calls to be routed anywhere in the
  enterprise
• Add new applications
• Unified communications
• Real-time collaboration

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Speech Deployment with IP
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Standards

• Setup
• SIP - setting up, changing, and terminating
  multimedia sessions between devices
• Transport
• RTP - carries multimedia traffic over the network
• Compression
• G.711 and G.729 - traditional phone service and
  VoIP
• Speech Recognition
• MRCP - communicate with a speech engine

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VoIP Blueprint for Speech
Directory Assistance
PasswordReset
Applications Servers
VoiceXML or Speech Svr
SpeechRecognition
MRCP
Media Resource Function
SIP
RTP
MediaGateway
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Call Flow
App
MS
ASR
GW
SETUP
MRCP
REQUEST
MRCP ACK
200 OK MS SDP
200 OK MS SDP
CONNECT
RTP
RTP
Speech Session
BYE
BYE
END SESSION
DISCONNECT
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Telephony APIs vs. Markup Language
Telephony APIs Dialog Markup Language
Vendor independent and portable No Yes
Familiar development tools and fast time to market No Yes
Based on industry standards No Yes
Build on existing web content and infrastructure No Yes
Separates business logic from presentation layer No Yes
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The Downside

• Network upgrades
• IP migration for existing PBX
• QoS support for speech traffic
• Limited IP services from telco
• Application rewrites
• Development environment changes
• API changes
• Evolving standards
• SIP support for Call Progress Analysis
• Multiple Codecs

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Lower TCO with reduced development and delivery
Vendor Specific Platforms
Services Cost
Application Development Cost
Open Standards Platforms
Services Cost
Delivery Platform Cost
Application Development Cost
Delivery Platform Cost
Hardware Cost
Hardware Cost
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Impact of VoIP on Speech
New VoIP Converged Open Packaged Months
Traditional PSTN Separate Proprietary Custom Years
Telecom
Infrastructure
Development
Applications
ROI
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Summary

• Convergence
• Save money
• Add new applications
• Speech with VoIP
• Develop based on industry standards
• Improved ROI
• Stop by the Cantata booth 508