At ClueCon 2009, Jay Phillips spoke about exciting new developments in cloud telephony, specifically around Adhearsion, Asterisk, Voxeo and Tropo.com.

1. How many heard of Adhearsion before? How many heard of Tropo before?
Exciting Advancements
in Open-Source
Telephony Applications
in the Cloud

4. Adhearsion
AGI AMI
Asterisk

5. Asterisk Fun
• AGI has no SIP-level control
• AGI is synchronous. Can’t cancel command.
• AMI protocol format has NO enforcement
• No good bridging API
• Simple features cause crashes (e.g. parking)
• features.conf is not dynamic
Just to name a few!

9. It’s all for a good cause!
Right???

10. There are just some
things I can’t fix with
Asterisk

11. Most innovators
don’t care
about telephony

12. Innovators care about
human
communication

13. Hosting will make
telephony fun
(for once)

14. I set out to build an
Adhearsion hosting
company

15. was following two
nascent communities
FreeSWITCH
Java telephony
JSR 289, JSR 309, etc

16. then I found Voxeo

17. Adhearsion is now
officially sponsored by
Voxeo

18. Jason Goecke and I
have founded
Voxeo Labs
in Silicon Valley

19. First major project:
Tropo.com

20. Tropo Tropo
Today Tomorrow
will also support
Very much like a robust, high-level
Google App Engine protocol for
application
frameworks

21. Tropo Tropo
Today Tomorrow
Your Framework
App Engine
Internet
Language Shims
Tropo Protocol
TropoServlet
TropoServlet
SIPMethod
SIPMethod
Java
Java

22. Most of Tropo
will be completely
open-source

23. What about
Adhearsion?
• Adhearsion will have built-in Tropo
protocol support
• Can always use a FOSS stack with it
• Don’t want to build a cluster? Use Tropo!
• Lots of new features coming!
• First cloud-friendly telephony application
development framework

24. What to watch for
• Telephony hosting will become FOSS-friendly
• New communities for pre-written, cross-engine
open-source telephony applications
• The Java world will become an enormously
important citizen in open-source telephony
• Adhearsion support for Tropo, FreeSWITCH, etc
• New protocols designed for app frameworks
• Influx of new talent from the web world