It’s not Voice Over IPIt’s Everything Over IP

Telecommunications Service Provides basic voice service for free

Information Service Provides enhanced communication service that involves data

storage/processing i.e. Internet access, voice mail…

Two Worlds

• Supports both the Voice and Data

• Call Routing

• Integrates other media like Video, Electronic White Board

• Flexibility

• Reliable Services

WHY VOIP?

CONCEPTUAL MODEL

IMPLEMENTATION MODEL

VoIP Architectures

• PC to PC

InternetInternet

VoIP Architectures• Phone to Phone via the Internet

InternetInternet

VoIP Architectures

• Phone to Internet to Gateway to PSTN

InternetInternet

GATEWAY

PSTNPSTN

Alternative VoIP Architectures• PSTN to Gateway to Internet to Gateway

to PSTN

InternetInternet

GATEWAYGATEWAY

PSTNPSTN PSTNPSTN

VoIP Examples

• Xbox Voice• Windows messenger• AOL Instant Messenger• Motorola Phone Adapter (Vonage)• Cisco Phone• Cox Cable in Hampton Roads, Virginia

A VoIP Network

Company/Developer: Palosanto SolutionsOS family: GNU/LinuxSource model: Free and open source softwareKernel type: Monolithic (Linux)

Elastix is an open source Unified Communications Server software that

brings together IP PBX, email, IM, faxing and collaboration functionality. It

has a Web interface and includes capabilities such as a Call Center

software with predictive dialing.

The Elastix functionality is based on open source projects

including Asterisk, Hyla Fax, Openfire and Postfix. Those packages

offer the PBX, fax, instant messaging and email functions, respectively. It

make an excellent software package available for open source telephony.

WHAT IS ELASTIX?

WHY ELASTIX?Elastix has a good support for telephony hardware. It includes

drivers for the major manufacturers like Dinstar， OpenVox, Digium, Sangoma, Rhino Equipment, Xorcom, and Yeastar. The most of these drivers are supported through the zaptel project or modified versions of it. Other drivers are supported by the mIDSN project and other projects.

Elastix also support other phone brands thanks to the SIP and IAX protocols that Asterisk implement. These protocols are based on public available standards. For this reason any manufacturer can build a product that supports them. Some supported manufacturers are Polycom, Atcom, Aastra, Linksys,Snom, and Cisco.

Elastix include the following communication media

There are new ways of communication every day and the addition of features and functionality must be constant. Elastix it’s capable of establish an efficient environment on an organization with the addition of many features that allows to integrate other locations of a company to centralize their business and take it global. A user in a corporation located in South America shares the same functionalities of another located in Asia besides having direct internal communication.

Some of the basic Features of Elastix include:VoicemailFax-to-emailSupport for softphonesWeb Interface ConfigurationVirtual conference roomsCall recordingLeast Cost RoutingExtension RoamingCaller IDAdvance Reports

Features of ELASTIX

SOFTPHONEA softphone is a software program for making

telephone calls over the internet using a general purpose computer, rather than using dedicated

hardware. For registering an extension number you can use a softphone. The biggest advantage is that it does not cost to you (if you use free versions) and it is easy to use. X-Lite softphone is shown below which can be

communicated visually

The Admin Dashboard – The Elastix control centre

REPORT GENERATION PANEL

FLASH OPERATOR PANEL