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Developing Voice
Applications In the
Cloud
Dan York
Director of Emerging Communication Technology
Voxeo Corporation
www.voxeo.com
dyork@voxeo.com
September 18, 2008
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What is \"Cloud
Computing\"?
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Cloud computing is the ability to
run your applications on a
providers' computing platform out
in the network cloud.
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Why the
Cloud?
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Scalability
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SLA
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ROI
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Minimizes Risk
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Business Continuity
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Deployment Speed
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Ease of Experimentation
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Why NOT the
Cloud?
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Security
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IT Control
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Platform is a fixed cost
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Having it Both Ways:
Hybrid
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Overflow
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Disaster Recovery
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So how does this work?
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Web Browser Diagram
HTTP
Web Web App
?
Browser Svr Svr
HTML
PHP
perl python
ruby
servlets
Java
XML ???
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Web Browser Diagram - Thin Client
HTTP
Web App
Thin Web
Protocol Browser ?
Client
(on svr) Svr Svr
HTML
PHP
perl python
ruby
servlets
Java
XML ???
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Voice Browser Diagram
HTTP
Voice App
Web
Phone Audio Browser ?
(on svr) Svr Svr
XML
PHP
perl python
ruby
servlets
Java
XML ???
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Voice Application Diagram
HTTP
Voice App/DB
Web
Phone Audio Browser ?
(on svr) Svr Svr
VoiceXML
or PHP
perl python
CCXML ruby
servlets
Java
XML ???
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An Alternate View
PSTN App
PSTN Audio IP-PBX
Gateway Svr
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Voice Application Diagram
HTTP
Voice App/DB
Web
Phone Audio Browser ?
(on svr) Svr Svr
VoiceXML
or PHP
perl python
CCXML ruby
servlets
Java
XML ???
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Location - Single network/server
HTTP
Voice App/DB
Web
Phone Audio Browser ?
(on svr) Svr Svr
VoiceXML
or PHP
perl python
CCXML ruby
servlets
Java
XML ???
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Location - Distributed
HTTP
Voice App/DB
Web
Phone Audio Browser ?
(on svr) Svr Svr
VoiceXML
or
CCXML
HTTP
Voice App/DB
Web
Phone Audio Browser ?
(on svr) Svr Svr
VoiceXML
or
CCXML
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Location - Distributed
HTTP
Voice App/DB
Web
Phone Audio Browser ?
(on svr) Svr Svr
VoiceXML
or
CCXML
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Location - Distributed/Cloud
HTTP
Voice App/DB
Web
Phone Audio Browser ?
(on svr) Svr Svr
VoiceXML
or
CCXML
HTTP
Voice App/DB
Web
Phone Audio Browser ?
(on svr) Svr Svr
VoiceXML
or
CCXML
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Location - Distributed/Cloud
HTTP
Voice App/DB
Web
Phone Audio Browser ?
(on svr) Svr Svr
VoiceXML
or
CCXML
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Location - Distributed/Cloud
SIP HTTP
PSTN App
Phone Audio IP-PBX ?
Gateway Svr
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Location - Hybrid
HTTP
Voice App/DB
Web
Phone Audio Browser ?
(on svr) Svr Svr
VoiceXML
or
CCXML
HTTP
Voice App/DB
Web
Browser ?
(on svr) Svr Svr
VoiceXML
or
CCXML
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Another View
Application
Platform
Internet /
WAN
IP-PBX
LAN PSTN
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All the Way Into The Cloud
Hosted
“IP-PBX”
Internet /
WAN
Firewall
LAN PSTN
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What Kind of
Cloud?
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Server-in-the-cloud (ex. EC2)
HTTP
Voice App/DB
Web
Phone Audio Browser ?
(on svr) Svr Svr
VoiceXML
or PHP
perl python
CCXML ruby
servlets
Java
XML ???
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Server-in-the-cloud (ex. EC2)
HTTP
Voice App/DB
Web
Phone Audio Browser ?
(on svr) Svr Svr
VoiceXML
or PHP
perl python
CCXML ruby
servlets
Java
XML ???
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Server-in-the-cloud (ex. EC2)
HTTP
Voice App/DB
Web
Phone Audio Browser ?
(on svr) Svr Svr
VoiceXML
or PHP
perl python
CCXML ruby
servlets
Java
XML ???
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Application-in-the-cloud (Voxeo, GAE)
HTTP
Voice Web App/DB
Phone Audio ?
App Svr Svr
VoiceXML
or PHP
perl python
CCXML ruby
servlets
Java
XML ???
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Questions to Ask
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Can You Trust The Cloud To Be There?
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How Are You Connected?
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Scalability?
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SLA?
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Security?
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Geographic/Physical Redundancy?
http://flickr.com/photos/txd/100437832
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Proprietary = Lock-In
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Open
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Standards Matter
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VoiceXML CCXML
SIP
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API Support?
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Firewall Traversal?
Internet LAN
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Open
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Thank you!
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Dan York
dyork@voxeo.com
blogs.voxeo.com
www.voxeo.com/free
evolution.voxeo.com
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