Compact Open Source Soft PBX for VoIP Solutionsin SOHO and SME Environments

Prof. Dr.-Ing. Diederich WermserMichael Iedema (BSC CS)

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Hybrid Open Source PBX for Private / SOHO / SME

ISDN/PSTN-phone

Internet

Public ISDN/PSTNWLAN

GSM-phone

LAN

ISDN/PSTN-phone

ISDN/PSTN-phone

ISDN/PSTN-phone

External Askozia extension (e.g. Home Office)

VoIP-phone

VoIP-phone

VoIP-phone

VoIP-phone VoIP-phone

Public Networks Private Network

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Hybrid Open Source PBX for VoIP / ISDN / Analog

ISDN/PSTN-phone

Internet

Public ISDN/PSTNWLAN

GSM-phone

LAN

ISDN/PSTN-phone

ISDN/PSTN-phone

ISDN/PSTN-phone

External Askozia extension (e.g. Home Office)

VoIP-phone

VoIP-phone

VoIP-phone

VoIP-phone VoIP-phone

Public Networks Private Network

• Easily Configurable• Scalable from SOHO to SME• From Embedded Hardware

up to Server

… …

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Features

Voicemailforwarded as e-mail attachment and/or retrievable by dialing in with pin

Call parking and transfers(blind and attended)

Fully supportedVideo telephony

Conference roomswith optional pin

Telephony

multilingual audio-prompt and voicemail notification e-mails(e.g. nl, en, fr, de, it, jp, ru, es, se, pl)

Technical "generic-pc" image runs on any x86 based hardware

less than 12MB firmware images,designed for embedded hardware (e.g. PC Engines, Soekris, Herologic

searchable databaseof call detail records

Configuration

Entire system configuration is stored in a single XMLfile

PHP based webGUIconfigures phone and provider accounts for:SIP, IAX, ISDN and analog

!

"

# $

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Overview

makes Asterisk more accessible• simplifies configuration of most

common Scenarios • more familiar terminology • proper defaults

complete system• new releases upgrade everything

(OS, Asterisk, etc:)• single XML file stores configuration of

entire install

targets embedded hardware• build a PBX with off-the-shelf

components• low power-consumption

scales up to larger tasks with morecompetent hardware and softwareextensions

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Background / Timeline

Permanent storage system implementedBasis for e.g.- IVR- call recording- music on holdJan

SepVoIP over

WLAN

2007 2008Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar

Janproject begin

Sepmost common interface types

supported

Novextensions

system implemented

- DID/DDIJun

first public beta

Julmultilingual

prompts

Sep

Analogprovider +

phone support

Aug

ISDN provider +

phone supportMar

1.0 released after XX betas

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Midterm Vision

• AskoziaPBX to become the market-dominanthyprid SoftPBX for Private / SOHO / SME Environments

• Self-connecting AskoziaPBX VoIP networksthroughout the Internet

… Organize your family and friends

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Target Market

• Computer System Retailers

• ISP / Telecom Operators

• Hardware Manufacturers

• SOHO Users

… …

for example

for example

for example

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Market Environment

Similar Projects Differences to AskoziaPBXAsteriskNOW, Trixbox, Elastix• complete systems with easy to use

GUIs• much too large for smaller hardware platforms• too much expected of people new to Asterisk &

Linux

Open Source AstLinux

• targets embedded hardware • missing a user-friendly GUI

Com

mercial

FRITZ!Box Fon• excellent option for SOHOs• built-in traffic shaping, routing, firewall

and modem• user-friendly

• limited configuration options• fixed, non-upgradable hardware components

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Standing on the Shoulders of Giants

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Roadmap

support for integrating AskoziaPBX with back-end authentication / storage

permanent storage interface• attached storage devices can be

defined to support “extended services“• ...permanent logs, full voicemail

system, additional audio packs

Technical

improve network interface features:• automatic detection• multiple interfaces will be bridgable• VLAN support• WLAN support

Configuration

expand incoming call routing options• DID / DDI• ACD Call Center Features

Telephony

allow AskoziaPBXs to easily be clustered or coupled

Sub-Nodes

Peer-Nodes

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Community / Support• public svn, so far a single committer• project's target audience is end-users rather than programmers• the gold that our community produces:

- interface, device and provider interoperability reports- ideas for missing features expected in other regions / cultures- Translations

• community has donated and lent equipment for testing• particularly evident in getting initial ISDN support implemented• continued cooperation with isdn4bsd project in adding additional

support for unrecognized cards

• IKT ported efficient echo-canceller from Linux to FreeBSD, now publicly available High international visibility and

recognition (e.g. Japan)

• One full time developer at IKT

• Support team of 5 VoIP-and Telecom-specialists at IKT

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About IKT / Some Cooperation PartnersIKT is an institute associated with the University of Applied Sciences Braunschweig/ Wolfenbüttel; Germany.

We are specialized in the research and development of technologies and solutions for IP based communication services, networks and applications.

Current R&D activities include technologies such as• Voive over IP, Multimedia over IP• Session Initiation Protocol (SIP)• Open Source Software Packages; Asterisk, SER,

FreeSWITCH among others• Presence Services• IP Multimedia Subsystem (IMS), TISPAN• Quality-of-Service-Mechanisms (QoS), IntServ, DiffServ,

MPLS• Network "VoIP-Readiness„• IPv6• Protocol conformity tests, particularly TTCN-3

www.itison-ikt.de

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Hybrid Open Source PBX for Private / SOHO / SME

ISDN/PSTN-phone

Internet

Public ISDN/PSTNWLAN

GSM-phone

LAN

ISDN/PSTN-phone

ISDN/PSTN-phone

ISDN/PSTN-phone

External Askozia extension (e.g. Home Office)

VoIP-phone

VoIP-phone

VoIP-phone

VoIP-phone VoIP-phone

Public Networks Private Network

Thanks for your attention!Questions?

www.askozia.com