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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

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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

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

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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

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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: > 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.

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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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

Documents

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