Apro questa discussione per tenere un elenco di software PBX (open source - freeware) di facile installazione ed utilizzo, che si possono trovare, in modo da poter confrontare le caratteristiche e facilitare la scelta agli utenti.

Trixbox
trixbox is a telephony application platform based on Asterisk™ Open Source PBX Software. The trixbox application platform makes it fast and simple to install and configure your business-class telephony system. With unlimited extensions, voicemail-to-email, music on hold, call parking, analog lines or high density T1/E1 circuits and many other features, trixbox provides all the functionality your business needs. trixbox brings big business PBX features to small and medium-sized businesses.

Elastix
Elastix is an appliance software that integrates the best tools available for Asterisk-based PBXs into a single, easy-to-use interface. It also adds its own set of utilities and allows for the creation of third party modules to make it the best software package available for open source telephony.

AdminsParadise VoIP Phone and Fax Server
AdminsParadise VoIP Phone and Fax solution
The ultimate phone and fax solution for your network. Combine the best packages into an easy to install solution.
Features Clustered Solution, latest hylafax, asterisk, freepbx, avantfax, scheduled conferencing, etc.

CosmoPBX Live CD
CosmoPBX is Linux live CD based on Knoppix Linux. CosmoPBX is released as open source under the GNU General Public License (GPL) and is available for download free of charge. With CosmoPBX, it is possible to get a PBX system up and running within 2 minutes without installing anything! CosmoPBX is designed to reduce the time spent in installation and setup of typical PBX system with Asterisk. You don't even need a hard disk to use CosmoPBX. CosmoPBX can also be installed on local hard drive. Click here to read installation documentation. CosmoPBX is built from Knoppix which has solid Debian Linux foundation. CosmoPBX is bundled with latest Asterisk 1.4.0 and Asterisk-GUI Beta. With Asterisk and Asterisk-GUI installed, one doesn't have to worry about installing Operating System, dependencies and all necessary packages to get the IP PBX system running with Asterisk PBX.

AsteriskNOW
AsteriskNOW is an open source Software Appliance; a customized Linux distribution that includes Asterisk (the most popular open source IP PBX in software), the AsteriskGUI™, and all other software needed for an Asterisk system. AsteriskNOW is easy to install, and offers flexibility, functionality and features not available in advanced, high-cost proprietary business systems.

Free easyAsterisk
Free easyAsterisk e’ una versione preconfezionata per coprire le normali necessita’ delle installazioni medio-piccole (studi professionali, aziende artigianali, eccetera). Permette di accedere a tutte le funzionalita’ di easyAsterisk ed e’ pronta per gestire ogni tipo di interfaccia telefonica tradizionale (Analogica, ISDN base, ISDN Primario) ed IP; utilizzandola e’ possibile verificare tutte le caratteristiche del software provandone la semplicita’ d’uso.
    Utilizzando Free easyAsterisk si possono attivare installazioni complete di centrali ibride RTG/IP per la piccola impresa ed e’ anche possibile generare reti telefoniche private collegando tra loro Free easyAsterisk remoti per comunicare gratuitamente all’interno di piu' sedi distaccate. Infine, il supporto tecnico on-line Free easyAsterisk e’ completo e le aree specifiche presenti in questo sito permettono di ottenere immediate risposte per praticamente ogni domanda possa insorgere.
Con la Free è possibile configurare un massimo di 5 interni e 2 trunks.

EasyVoxBox
A full featured IP PBX phone system. EasyVoxBox is based on Asterisk and freePBX and installs a complete system quick and easy. It gives full control and provides additional system utilities via the web based user interface.

Axon Virtual PBX Software
Manage calls in your business or call center
Axon is a virtual PBX designed to manage calls in a business or call center. Any business, whether small or large, can now implement a scalable VoIP based PBX by installing this software on any Windows PC. The software works as a fully featured telephone switch connecting to phone lines and extensions using state-of-the-art VoIP technology.

Offering all the normal features of a traditional PBX such as allowing internal or external calls and more advanced call queuing for call center applications the software routes all calls within a business.

Axon can also be used in conjunction with our other telephony software including IMS On-Hold Messages System, VRS Voice Call Recording Software, IVM Call Attendant, Voice Mail and IVR Software and Express Talk Internet Phone. For an overview on how Axon can be used with our software in a call center environment, click here.

This software is designed to be very easy and intuitive to use. Within minutes you will be able to setup the software and start making phone calls. A full list of features follow below but a quick way to try it out is to download and install now. You don't need to purchase and it only takes a couple of minutes to complete the process. Axon is free.

AstBill
AstBill is not only a free web-based, user friendly billing interface for Asterisk and VOIP. It is also a Asterisk configuration and GUI management tool and a standardized implementation of Asterisk using REALTIME and static configuration as you please.

AstBill is free open source software licensed under the GPL, and is maintained and developed by a community of users and developers. AstBill is free to download and use. If you like what AstBill can do for you, please work with us to expand and refine AstBill to suit your needs.

AsteriskWin32

ADM Asterisk Desktop Manager
ADM provides some great features:
    * Automatic on-call volume reduction
    * One click dial from clipboard (paste number onto tray icon)
    * Integrated phonebook
    * List/Redirect/Hangup all active calls
    * One click call forward setup
    * Bluetooth presence detection to redirect calls when you walk out of the office
    * Pop up browser on incoming call (integrate with your CRM to auto load customers details when they call)
    * Cisco phone integration (auto speakerphone)
    * Slide-in popup on incoming call, with Answer(cisco only), Hold, Busy and Redirect buttons , CallerID and duration

EasyVoxBox
A full featured IP PBX phone system. EasyVoxBox is based on Asterisk and freePBX and installs a complete system quick and easy. It gives full control and provides additional system utilities via the web based user interface.

ST-PBX Live CD
ST-PBX Live es un conjunto de herramientas y servicios orientados a la comunicación VoIP (Voz a través de Internet). Estas herramientas permiten a empresas y usuarios finales crear canales de comunicación con sus clientes, amigos, familiares, proveedores, o incluso con otras sucursales de la misma empresa o franquicia.

ST-PBX Live está basado en una distribución de Linux en formato CD Live. El formato Live le permite probar el software sin tener que realizar ninguna instalación. Mediante ST-PBX Live, usted puede probar sin complicaciones las ventajas de la VoIP.

ST-PBX Live es un sistema autoejecutable, que funciona directamente desde el CD. Solo tiene que arrancar el PC con el CD en el lector, y después de configurar los dispositivos VoIP de que disponga, podrá disfrutar de la comunicación por voz mediante Internet. No se preocupe, usando éste método usted no accede a su disco duro, y sus datos están protegidos. Una vez haya probado ST-PBX Live, puede reiniciar el PC sin problemas y seguir trabajando con su sistema habitual.

ST-PBX Live incorpora un método de autoinstalación en el disco duro, totalmente automático, para que pueda mantener el sistema instalado permanentemente. Así podrá tener un sistema dedicado para sus comunicaciones VoIP. El sistema de instalación automático formatea el disco primario de su PC, con lo que toda la información que contenga ése disco será borrada.

Una vez que el sistema está funcionando, puede configurarlo para acceder a los principales proveedores de servicios de VoIP, tales como PeopleCall, Free World Dialup, etc., o utilizarlo como un sistema de comunicación privado entre sus clientes, proveedores, amigos, etc.

TelGO
TelGO Phone : simple iax client modify from iaxcomm. for IAX small provider. Focus to MS windows user. TelGO PBX : Linux IPPBX with Firewall and Web GUI config

DeStar
Destar is a web-based interface to manage the Asterisk PBX.
It provides high-level abstraction of the Asterisk configuration.

AstLinux
stLinux is a custom Linux distribution centered around Asterisk, the Open Source PBX. Although Asterisk remains the core focus, other VoIP applications such as OpenSER are also available. AstLinux has many features that make it ideal for embedded and commercial Asterisk based solutions.

miniSipServer
miniSipServer is a software-based VOIP server. It is developed specifically for Micorsoft Windows platform and is based on the SIP standard which is an open industry standard. miniSipServer can be registrar server, route server, STUN server and can authenticate usrs, route call etc. We have to mention that it is very easy to use!. Just setup and run it in 1 minute!

Bello, non lo avevo ancora visto.
Però intendevo un elenco dei software provati da utenti di questo forum che diano le loro impressioni, consiglio ed altro.
Non intendevo fare un elenco assoluto come quello di voip-info.
Volevo solo raccogliere l'elenco dei software nel primo post e poi di seguito gli utenti dicevano cosa, secondo le loro esperienze, va meglio in questo o quel software.