Developing Voice Apps Using
Mashups and SOA
Dan York, Director of Conversations, Voxeo
VoiceCon SF 2009
November 4, 2009

1999 – World’s Simplest Telephony XML
<callxml version="3.0">
<say>Hello World</say>
</callxml>

HTTP
Phone
Web
Audio
Server
XML
perl PHP python
ruby
Java servlets
???
XML

2009
• Largest worldwide provider of hosted XML
telephony – VoiceXML, CCXML, CallXML
• THE most standards-compliant platform
• Over 100,000 developers using platform
• Global presence – offices in Orlando, Beijing,
Cologne, London, San Francisco
• Premise product added 2006
• One of only 2 platforms recommended by
analyst firm Datamonitor for premise IVR
• Natively based on SIP & other open standards
• Free download and free developer accounts

Tropo.com

answer()
say("Hello, world!”)
hangup()

Unified Self-Service

Unified Self-Service

www.voxeo.com/free
www.tropo.com

What is a “voice mashup”?

http://www.flickr.com/photos/plasticrevolver/61068219/

Mashup =2 or more services
combined into a
single user experience
using lightweight APIs

WHY?

Speed
Flexibility
Agility

The
Internet
Way

HTTP
Phone
Web
Audio
Server
XML
perl PHP python
ruby
Java servlets
???
XML

Service
HTTP
Phone
Web
Audio
Server
XML
perl PHP python
ruby
Java servlets
???
XML

Service
Phone Audio
Service

Service
Service

Example: NY State Senate OpenLeg API (Mark Headd)
NY
Senate
API
Service

Example: NY State Senate OpenLeg API (Mark Headd)
Phone: (646) 736-2439
SMS: (315) 308-1943
Jabber IM: opensenate@bot.im
Twitter: @opensenate

Example: VnoTed.com (Ted Gilchrist)
Location-Based Voice Updates
Google
Bright
App
Kite
Engine
Amazon Google
S3 Maps

Let’s Make One!
Yahoo!
Weather

Unlocked
Communications
www.voxeo.com/free