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Primer: State of the Art in Open Source
David Willis
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September 10-12, 2007 • Los Angeles Convention Center • Los Angeles, California
www.ITEXPO.com
"Open standards" (like SIP) are not the same as "open-source" Software
Open Source and Open Standards
Software source code "open-ness" continuum
Open Closed
Freeware
OS w/Forking:Reciprocal
Open Source
LicenseType
Label
PublicDomain
OS w/Forking:Attribution
PublishedSource Code
Private Source
50+ OS License types
Proprietary Code
The term "open standards" can apply to all of these.
Public APIs, open SDKs, 3d party or
open tools
Proprietarydevices,
APIs, Tools.
and sometimeseven these.
Open source SomeSolutions
5
September 10-12, 2007 • Los Angeles Convention Center • Los Angeles, California
www.ITEXPO.com
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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September 10-12, 2007 • Los Angeles Convention Center • Los Angeles, California
www.ITEXPO.com
OSS Core Value Propositions
Maturity
High
HighLow
Quality orFunctionality
.IM/Pres
.
.OS/LinuxSecurity
PBX
SIPserverDev Tools
Network
Principal Value
High-volume
Mature
Many code reviewers
Time to market
Share the Costs of Value Creation, Maintenance and Support
Val
ue
Cost
7
September 10-12, 2007 • Los Angeles Convention Center • Los Angeles, California
www.ITEXPO.com
Wide Range of OSS Options
CommunicationApplications
CommunicationServers
WANand LAN
Tools: Eclipse
IM/Presence: JabberIP-PBX: Asterisk, sipXSIP Servers: OpenSER, SER
SIP client: sipXphoneEmail: Zimbra
Web: Apache SystemServices OS: Linux Directory: OpenLDAP, RedHat, BIND
CRM: SugarCRM
DB: MySQL
Security
IVR: GNUBayonneCallCenter: ViciDial
A few of the hundreds of open-source communication solutions available
Network Management
This is a partial list of companies for illustration purposes and is not intended to be used as a purchase recommendation.
Routing: Vyatta, ImageStreamCarrier Switching: Cirpack
Monitoring: Open NMS, ZenOSS, MRTG, Nagios, Statistics: NTOP Analyzer: Ethereal, Wireshark
Firewall: Shorewall
IDS: SnortAnti-Virus: ClamAV
VPN: Openswan
Console: FreeSWITCH
8
September 10-12, 2007 • Los Angeles Convention Center • Los Angeles, California
www.ITEXPO.com
Our Panel
• Solegy - Eric Hernaez, CEO and Founder
• a la Mobile, Inc. - David Rivas, CTO
• Fonality – Kerry Garrison, Sr. Product Mgr
9
September 10-12, 2007 • Los Angeles Convention Center • Los Angeles, California
www.ITEXPO.com
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
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September 10-12, 2007 • Los Angeles Convention Center • Los Angeles, California
www.ITEXPO.com
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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September 10-12, 2007 • Los Angeles Convention Center • Los Angeles, California
www.ITEXPO.com
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.
http://www.sipfoundry.org/ orhttp://sipx-wiki.calivia.com
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
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September 10-12, 2007 • Los Angeles Convention Center • Los Angeles, California
www.ITEXPO.com
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
PSTN
1 2ABC
3DEF
4 5JKL
6MNOGHI
7 8TUV
9WXYZPQRS
* 0OPER
#
?
+-
7961 SERIES
CISCO IP PHONE
10 Mbps 100 Mbps
SIP Proxy
Media Server
SIP/PSTN G/W
Soft Clients
• Single line with UM, moving to multi-line with calling groups
• 911 service equal to Centrex
• Fully redundant infrastructure with QoS and VLANs/subnets