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3. Primer: State of the Art in Open Source David Willis

4. SomeSolutions Open source The term "open standards" can apply to all of these. Open Source and Open Standards Software source code "open-ness" continuum Label Open Source Proprietary Code Freeware Open Closed OS w/Forking:Attribution OS w/Forking:Reciprocal PublishedSource Code Private Source LicenseType PublicDomain Public APIs, open SDKs, 3d party or open tools Proprietarydevices,APIs, Tools. 50+ OS License types and sometimeseven these. "Open standards" (like SIP) are not the same as "open-source" Software

5. Past Focus was on infrastructure Proprietary technologies Performance demanded custom hardware Little integration across technologies Slower product cycles and competition Enterprises unwilling to accept any risk in networking Today Infrastructure is in place Interoperable standards Moore's Law enables high performance via software Shift to software-based applications/services Increase competition among vendors Vibrant open-source community embraced by enterprises looking for a better solution Emerging Drivers for Adoption

6. . OS/Linux Security . SIPserver Dev Tools Network PBX . IM/Pres OSS Core Value Propositions Share the Costs of Value Creation, Maintenance and Support Quality orFunctionality High Principal Value High-volume Mature Many code reviewers Time to market Value Cost Low High Maturity

7. Wide Range of OSS Options A few of the hundreds of open-source communication solutions available CommunicationApplications IVR: GNUBayonne CRM: SugarCRM SIP client: sipXphone CallCenter: ViciDial Email: Zimbra IP-PBX: Asterisk, sipX SIP Servers: OpenSER, SER CommunicationServers IM/Presence: Jabber Console: FreeSWITCH Web: Apache SystemServices DB: MySQL Tools: Eclipse Directory: OpenLDAP, RedHat, BIND OS: Linux Network Management Monitoring: Open NMS, ZenOSS, MRTG, Nagios, Statistics: NTOP Analyzer: Ethereal,Wireshark Firewall: Shorewall Anti-Virus: ClamAV Security IDS: Snort VPN: Openswan Routing: Vyatta, ImageStreamCarrier Switching: Cirpack WANand LAN This is a partial list of companies for illustration purposes and is not intended to be used as a purchase recommendation.

8. Our Panel • Solegy - Eric Hernaez, CEO and Founder • a la Mobile, Inc. - David Rivas, CTO • Fonality – Kerry Garrison, Sr. Product Mgr

9. OSS PBX: Asterisk Asterisk - Offers full set of PBX functionality: • It has been enhanced with additional open source functionality,including voicemail, audio-conferencing, contact center,Auto Attendant, IVR, and others. Installed base: > 1.5 million versions of Asterisk downloaded and installed: • Estimated 250,000 sites in production (+/- 10%) (including VARs). • Average site size is 25 extensions/users. Some are small, others are large 3,000+. Differentiator: the best known OSS telephony solution Leading sources for SMB solutions: • Large enterprises have licensed directly with Asterisk. • SwitchVox - turnkey CPE SMB solution (up to 200 users). A plug and play. Good administration GUI. Many references. $2,495 – for 24 simultaneous calls; an upgrade to 60. No handsets included. Support $499/yr SMB (updates, patches, call and email support). • Fonality - where the GUI and Admin is thin client and can be hosted and a CPE PBX is installed. For SMB (up to 200 users). Many references. $995. Support ~$60/year per user. • There are many other dealers and integrators available. www.asterisk.com

10. OSS Instant Messaging (IM) and Presence: Jabber Instant Messaging and Presence • Installed base: • Est. 2 million downloads. There are multiple versions of Jabber. Est. number of sites 50K+. Users is 50M+. • Differentiator: • Based on an Internet protocol: RFCS 3920/21 XMPP • Multiple versions – one OSS, one proprietary/ supported; choice, interoperability • Widely used by large commercial end-users, ISVs, VARs • Drivers for companies using Jabber: • Open source and standards-based IM and Presence • Flexibility to have and integrate with business and other applications • Large base of proven success and users http://www.jabber.org/

11. OSS Enterprise CommunicationSystem: SIPfoundry's sipX • Next Generation SIP Architecture • Installed base: 2K+ sites. Average size 2K-4K users. Testing at 10K & 50K users. Fully redundant. Differentiator: • Native SIP Transport, proxy-registrar redirect – route SIP end to end • Scaleable and high availability (uses DNS for full load balancing) • Full set of voice communication functions; federate w/presence • Plug & play device management Drivers for companies: • Robust and enterprise class – highly scaleable • Standards compliant – native SIP • Full installation and support options available http://www.sipfoundry.org/ orhttp://sipx-wiki.calivia.com

12. PSTN Media Server SIP Proxy SIP/PSTN G/W 100 Mbps 10 Mbps Soft Clients Case Study — University of Pennsylvania • Founded in 1740, Penn is an Ivy League school with 22,000 students and 17,000 faculty and staff. • Migrating from Centex voice to SIP/VOIP • Centrex cable plant 25-75 years old and unreliable • $3M-$5M to replace cables • Decided to move 25K users to VOIP within 5 years • 9,000 students live on campus • Centex voice system and ACD • Chose SIP with IMAP to provide unified messaging • Proxy server • SER (iptel.org) • OpenSER (openser.org) • Media Server – Asterisk (digium.com) • IMAP customization • Multiple hard and soft phones • Single line with UM, moving to multi-line with calling groups • 911 service equal to Centrex • Fully redundant infrastructure with QoS and VLANs/subnets