This document discusses open source software and Asterisk, an open source telephony application. It provides an overview of open source trends, how Asterisk works as an open source telephony solution, and how the company Digium both sponsors the Asterisk project and provides commercial products and services related to Asterisk.

1. An Open Source VoIP Primer Danny Windham CEO Digium, Inc “ The Answer is Open”

2. Industry Trend Open source software disrupts proprietary alternatives “ The Answer is Open”

3. Open Source Software Open source software is computer software for which the human-readable source code is made available under a copyright license (or arrangement such as the public domain ) that meets the Open Source Definition . This permits users to use, change, and improve the software, and to redistribute it in modified or unmodified form. It is often developed in a public, collaborative manner. Wikipedia

4. “ The Answer is Open” GAIM/Pidgen Instant Messaging Zimbra Productivity Suite Zmanda Backup SugarCRM Customer Relationship Management MySQL Database Asterisk Telephony/Communications Firefox Browser Apache Web Server Linux Operating System Open Source Solution Function/Application

5. Community Development Open Source development allows individuals to contribute to any project that interests them Contributions can include both software development and testing These contributors become the project’s “community” “ People just self select to do projects where they have expertise and interest” Linus Torvalds, The Originator of Linux

6. Open Source vs. Proprietary (from Bruce Guptill, Saugatuck Technology) Disruptive Elements An ability to customize and use the software code to whatever extent required and useful Reduced dependence upon software vendor technologies, license schemes, and maintenance/support requirements Enables low cost commercial offerings based upon open source software

7. Mass Collaboration - Wikinomics Don Tapscott – CEO, New Paradigm Author of: Paradigm Shift Growing Up Digital The Naked Corporation Wikinomics: How Mass Collaboration Changes Everything " Wikinomics captures and explains the essential nature of the next generation of the Internet -- how collaboration and communication technologies are democratizing the creation of value. An insightful, engaging and very important book." - John Chambers , Cisco Systems - President and CEO

8. Collaboration Solution Wikipedia Collaboratively created Encyclopedia Owned by no one Over 10,000 authors 4 million articles 200 languages 10 times the content of Britannica 5 employees as of the end of 06

9. Are you an Open Source User? TIVO BMW Motorola Razr Vonage

10. Open Source Trends Source: Savatar

11. The Market: Open Source Stand Alone Open Source Market will reach $5.8B by 2010/2011 (26% CAGR) 1 More than 10,000,000 new downloads of some version of open source software in 2008 1. IDC

12. Industry Trend Telephony becomes IP Telephony “ The Answer is Open”

13. IP Telephony Adoption IP PBX market will reach $7.9B by 2010 (21% CAGR) 2 2010 IP PBX adoption will still be less than 50% By 2009, IP line shipments will pass TDM shipments 3 Growth in IP Telephony (IPT) systems dominates PBX market segment 3 19% CAGR 2. Gartner Group 3. TEQConsult Group

14. What is Asterisk? “ The Answer is Open”

15. What is Asterisk ? Asterisk is the worlds most popular open source VOIP development platform that empowers users to develop customizable and personalized feature rich applications.

16. Where Asterisk Fits

17. Asterisk: the Open Source Project Over 1,000,000 downloads in 2007 Over 3.5 million servers deployed with Asterisk Over 64,363 active on forums (2/29/08) Over 15,000 on active Asterisk mailing lists Over 5,000 on our Bug Tracker Over 300 active contributors Over 7M web site hits/month Over 200 service providers worldwide using Asterisk Dedicated Tradeshows: AstriCon for Asterisk Developers and Users; Digium Asterisk World (at VON) – Asterisk for business The Asterisk Community The Asterisk Community was voted #1 Most Influential Individual in VoIP, VoIP Info 11/2006

18. How does an open source company make money? “ The Answer is Open”

19. OSS Business Models Services model Red Hat Dual Licensing model Digium MySQL Feature Differentiation model Zimbra Ancillary products model Many

20. Who is Digium? “ The Answer is Open”

21. Digium – the Company The creator, sponsor, and maintainer of the Asterisk Open Source Project The company that’s at the intersection of Open Source and IP Telephony Supplier of ‘All Things Asterisk’ Mark Spencer – The Asterisk Creator Digium Founder and CTO - “ The Answer is Open”

22. Digium’s Corporate Roles Digium Benevolent Asterisk Project Sponsor and Maintainer For Profit Company All things Asterisk

23. Digium Product Relationships

24. Thank you www.digium.com www.switchvox.com www.asterisknow.org www.asterisk.org www.astricon.net www.digiumasteriskworld.com “ The Answer is Open”