Open Source, Multi-Modal Applications with Voice
May 2009

Jason Goecke
• Adhearsion core team member
• Email: jason@adhearsion.com
• Twitter: jsgoecke
• Blog: http://blog.goecke.net
• Github: jsgoecke

Telephony
• Make and receive phone calls
• Ubiquitous
• Development dominated by enterprise
software vendors

Enterprisey
• ‘Standards’
• VXML / CCXML /
XHTML+Voice
• Traditionally expensive

Open source enables the Long
Tail
Popularity
Applications

TwitterVoteReport
http://twittervotereport.com

TwitterVoteReport -
Multimodal Application
#votereport SMS: 66937 1.567.258.VOTE

Asterisk
• Open Source Telephony Engine
• Multi-protocol support
• TDM/SIP/IAX2/H323/Jingle/Skype
• Exceptionally Flexible
http://asterisk.org

Asterisk

Adhearsion ’s Ruby

Adhearsion Architecture

How Adhearsion Works

Adhearsion Dialplan.rb

Adhearsion Events.rb

Adhearsion Components
APIs
- REST/JSON
- DRb
- STOMP

Rhomobile - Write once, deploy
everywhere
 Develop in Ruby & HTML - Native Apps
 http://rhomobile.com
Windows
iPhone BlackBerry Symbian Android
Mobile

Tropo - Cloud Telephony
API instead of VXML/CCXML
• Javascript, Groovy, PHP, Python, Ruby
• Working on ProtoTropo for Adhearsion Support...

Adhearsion Sandbox
http://adhearsion.com/getting_started

Finding more on
Adhearsion...
• Website
• http://adhearsion.com
• Wiki
• http://docs.adhearsion.com
• API Docs
• http://api.adhearsion.com