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Primer State of the Art in Open Source

• David Willis

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Open Source and Open Standards
Software source code "open-ness" continuum
Label
Open Source
Proprietary Code
Freeware
Open
Closed
OS w/ForkingAttribution
OS w/ForkingReciprocal
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
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Emerging Drivers for Adoption

• 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

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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
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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
Tools Eclipse
SystemServices
DB MySQL
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.
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Our Panel

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

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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 gt 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
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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/
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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.cal
ivia.com
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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