The Future of Developing Telephony
May 2009

About Me
Jason Goecke
• Worked with Adhearsion since 2006
• Full-time since December 2008
• Email: jason@adhearsion.com
• Twitter: jsgoecke
• Blog: http://blog.goecke.net
• Github: jsgoecke

About Me
Jason Goecke
• Worked with Adhearsion since 2006
• Full-time since December 2008
• Email: jason@adhearsion.com
• Twitter: jsgoecke
• Blog: http://blog.goecke.net
• Github: jsgoecke

The Creator
Jay Phillips

The Creator
Jay Phillips

Trend: Programming Languages
• What is the next killer language?
• Late 50’s - Fortran
• Late 60’s - ANSI COBOL
• Late 70’s - C
• Late 80’s - C++
• Late 90’s - Java

Trend: Programming Languages
• What is the next killer language?
• Late 50’s - Fortran
• Late 60’s - ANSI COBOL
• Late 70’s - C
• Late 80’s - C++
• Late 90’s - Java
• Now - Polyglot programming

Today’s Languages

Today’s Languages
Objective-C Haskell
C#
D
Javascript

Today’s Languages
Objective-C Haskell
C#
D
Javascript

Today’s Languages
Objective-C Haskell
C#
D
Javascript

Today’s Languages
Objective-C Haskell
C#
D
Javascript

Today’s Languages
Objective-C Haskell
C#
D
Javascript

Today’s Languages
Objective-C Haskell
C#
D
Javascript

Today’s Languages
Objective-C Haskell
C#
D
Javascript

Today’s Languages
Objective-C Haskell
C#
D
Javascript

Adhearsion ’s Ruby

Trend Towards Open-source
• Virtually all programming languages
• Virtually all popular database systems
• Virtually all popular web servers
• What percent of new phone systems use
open-source?

Virtual Machines are Difficult
Python
Javascript Ruby
Scala Clojure
Groovy
• Open-source languages are converging on VMs

Telephony does not have a VM
• Must...
• Be fully open-source
• Support SIP
• Handle media (MRCP)
• Allow sophisticated bridging
• Cluster well
• Scale Well

Simplicity Trend
• Case in point...
• Drizzle fork of MySQL
• Dynamically-typed programming languages
• REST vs SOAP
• JSON or YAML over XML
• Ruby on Rails over “enterprise” Java

Trend: The Long Tail
Popularity
Applications

Converging Trends
• Trend toward polyglot programming
• Trend toward open-source
• Trend toward a unifying programming language VM
• Trend toward simplicity
• Trend toward “Long Tail” applications
• If you want a definition of “Voice 2.0”, this is it

Adhearsion is...
“Adhearsion is a new way to
write voice-enabled
applications. It's not just an
API or library — it's a fully-
featured framework, the first
of its kind, designed for
maximal code reuse and
intuitiveness. The name
\"Adhearsion\" is a
combination of \"adhesion\"
and \"hear\" because
Adhearsion shines best
when integrating
technologies with voice.”
from Adhearsion.com

The Adhearsion World
Application Ecosystem
(applications, plugins, GUIs, etc)
Telephony Domain

The Adhearsion World
Application Ecosystem
(applications, plugins, GUIs, etc)
Ruby
JRuby
Java
Telephony Engine
(Asterisk, FreeSWITCH, Tropo, SIP Servlets, MRCP, etc)

What Adhearsion is Not
• Not...
• Ruby
• Ruby on Rails
• An Asterisk module
• A library
• For handset client apps
• An application
• Like what Nortel, Avaya, AT&T or any vendor has

How Adhearsion Works

Adhearsion Dialplan.rb

Adhearsion Events.rb

Adhearsion Components

Adhearsion APIs
• Extendable through components ‘methods_for’
• REST/JSON
• Distributed Ruby (DRb)
• STOMP
• ...

Adhearsion Roadmap
Future - v0.9.x
Today - v0.8.x
(Planned)
v1.4.x
v1.6.x

Adhearsion Roadmap
API instead of VXML/CCXML
• Javascript, Groovy, PHP, Python, Ruby
• Working on ProtoTropo...

Adhearsion Roadmap
JSR 289 - SIP Servlets
•Sailfin (Glassfish)
•Micromethods (Voxeo)
•Mobicents
MRCP
•UniMRCP
•And others...

Adhearsion Sandbox
Text
Text
http://adhearsion.com/getting_started

Check Out the Tutorial
“Your First Adhearsion Voice
App”
Track 1
Tuesday May 5 @ 18:00