6 Best Open Source Free & Cloud PBX Software/System Download for Windows 2022 – For Small Business

Best PBX Software Download: Hello folks, Are you searching for the best PBX software for your business? Then you are in the correct place. Finding the best free PBX system for all your need is not an easy job.  A PBX, or Private Branch Exchange, is a small switch that connects telephones between private businesses.

These days, hosted PBX services are quite popular. They provide to the demands of a wide range of organizations, from home-based startups (home PBX) to major corporations with many locations. Some PBX providers provide packages that are acceptable for the majority of businesses, but they are not ideal for everyone.

Best Free PBX Software
Best Free PBX Software

So here in this article, we provide you with the top best 6 free PBX and the best cloud-hosted PBX software for all your business needs. We Listed the below PBX servers based on the user’s reviews and our own experiences. Okay, let’s get into the topic.

What is PBX Software System?

PBX stands for private branch exchange, which is a telephone switchboard that connects local phone lines in a company or organization. PBX systems are also called phone systems and use software to route incoming calls, implement voice mail systems, handle fax and modem transmissions, and provide call-answering options.

There are many different kinds of PBX software packages available to purchase. Some are free and other PBX software has monthly fees to use. Free PBX software includes open-source options such as Asterisk, FreePBX, and Elastix. These systems are good for setups with just one or two extensions but may be too complex for more complex setups. Open-source options usually do not include some important features such as voicemail.

6 Top Best Open Source Free PBX Software for Windows 2022:

Here are the top free PBX software listed based on the user’s review, popularity, ratings, and updates. Choose any of the below open-source systems and share your experience with us in the below comment section. If you want to use windows 10 pro then SoftwareHUBs offers the most affordable pricing on Windows 10 Professional.

FreePBX – Open Source PBX Software

freepbx open source software
The best Open-Source platform available is FreePBX. It is a web-based Graphical User Interface (GUI) that supports customers in effectively managing and customizing their Asterisk-based system.

Users may use this open-source PBX software to create a scalable company phone system on any budget.

If you already have an Asterisk system, you may download and install simply the GUI. However, if you want to set up a full PBX server, you may get the whole package, which includes a pre-configured Linux OS, the Asterisk system, the GUI, and all dependencies required to make everything work together.

Despite its name, the software aspects of FreePBX are free to download, configure, and use – but you will need to pay a few fees before you can get started. Because you’ll need your own SIP trunk provider to make calls with FreePBX, you’ll still need to pay for an incoming and outgoing calling service to enjoy its key capabilities.

Asterisk – Free PBX System

Asterisk - Free PBX System

Asterisk is one of the greatest and most popular open-source software packages that offer both PBX functionality and additional P capabilities. This program, when used in conjunction with a Windows PC, replaces current switches, expands a PBX, and adds ceOverIP, conferencing, email, and a slew of other features.

The biggest benefit of utilizing Asterisk is that it has a long list of functionality that is growing year after year. You may transform any PC into a full-fledged communications server using this open-source technology.

Asterisk is now used in over 170 countries, with over one million communication systems. Asterisk is used by nearly every Fortune 1000 organization.

Voicemail, IVR, rule-based call routing, automated call distribution, and conference calling are all standard PBX capabilities. Because the Asterisk PBX platform is fully free and open-source, you may deploy and modify it as needed without incurring any license fees.

SipX – Free PBX for Windows

SipX is a free and open-source PBX software tool that uses the Session Initiation Protocol (SIP) to create an IP-based communication system.

It has a tendency to produce directory information on its own. The SipX service allows you to prevent outgoing calls and to have numerous calls on the same phone line.

Because of the software’s standard-based SIP open design, it is reasonably popular among both midsize and big organizations. It is written in C++ and Java, and it implements RESTful APIs. Because it has an open architecture that allows for simple automation, it can be easily adapted to meet the needs of the organization.

There is now an open-source alternative to Asterisk, thus it is no longer the only game in town. The “sipX” project is a SIP-only PBX distributed under the LGPL.

Elastix – PBX server/PBX Software

Elastix, which was originally built on Asterisk, is a full unified communications system that includes IP PBX, email, fax, IM, and collaboration services. Despite its emphasis on the entrepreneurial sector, the program is entirely free for both business and personal usage.

It provides a call center module with predictive dialing via a Web Interface. Elastix PBX software offers a variety of software packages, each with its own set of features.

Its features include web-based call center software and predictive dialing capabilities. Elastix functionality built on top of open-source projects provides PBX, fax, instant messaging, and email services.

Kamailio – Free PBX Software for Windows

The Kamailio is designed by an experienced team of developers with over 15 years of strong industry expertise. The team has never ceased adding new features and functions to it since its inception. With numerous login and authorization techniques, the program is regarded as the most secure platform.

Kamailio free PBX system is one of the most secure systems available, with a variety of login and permission options. This makes it a good alternative for firms that often deal with confidential information, such as those in the medical or financial professions. The platform is not only very secure, but it also has certain sophisticated features such as automated load balancing, routing fail-over, and least-cost routing.

Kamailio, on the other hand, may be a bit more complex, necessitating a much deeper understanding of the SIP protocol in order to successfully operate the platform.

3CX – Free PBX System/Phone System

3cx download

3CX is a corporate phone system that has gotten a lot of excellent feedback from users, with many praising how simple it is to use. 3CX is an easy-to-use corporate phone system that runs on a Windows server.

It has capabilities that allow you to operate with both traditional PSTN and VoIP phone systems. This capability will be quite useful for individuals who would prefer not to set up a Linux system just to implement their own PBX.

In addition to providing connectivity with many of the main CRM systems, the platform allows you to add “Click to Call” capabilities to your websites or mobile apps.

Best Cloud PBX Software for Business – Switchboard Software – Cloud Telephony

These are the top cloud PBX systems based on top reviews from the users. Try the below services and share your review of their services below.


Servetel is a well-known company that provides cloud telephony solutions for all of your business requirements. By offering toll-free numbers, virtual phone numbers, number masking, voice broadcasting, IVR systems, OTP verification, and other cloud telephony solutions to businesses large and small, it has helped them simplify and organize their whole communications.

We energize your corporate communication with our cost-effective, creative, and convenient cloud solutions. The Pay-as-you-go feature helps you to avoid spending money on useless infrastructure and to enjoy services with 99.99 percent uptime and amazing support.

Features of Servetel Could PBX System

  • It provides a quick setup within minutes.
  • Servetel provides you “all in one” call management solution.
  • You can easily get real-time call analytics.
  • You don’t need to invest in any infrastructure to access this service.
Servetel Could PBX System


AVOXI is a cloud-hosted PBX solution designed to improve your company’s communications right away.

Manage your company communications from anywhere in the globe with phone numbers in 170+ countries.

It has a unified dashboard that allows users to track inbound calls and sales activity using key performance metrics.

These include call disposition codes, real-time call monitoring, call whisper, call scoring, call barge, analytics, and reporting.

Features of AVOXI Cloud PBX Solutions

AVOXI Cloud PBX Solutions

GoTo Connect

GoTo Connect (previously Jive) provides a cloud-based unified communication solution to businesses of all sizes across the United States.

It integrates cloud VoIP phone systems with GoToMeeting’s web, audio, and video capabilities into a single easy-to-use solution.

GoTo Connect provides a PBX call routing system, automatic call distribution, broadband internet, call recording, conference calling, internet fax, mobility, and softphone as part of their integrated suite.

GoToConnect comprises cloud-based integrated products for corporate VoIP, video conferencing, and contact centers that may be accessed by web browsers on internet-enabled devices or by installing a desktop program on Mac and Windows devices.

The GoToConnect saves the effort and expense of maintaining various collaboration solution providers for as little as $19.95 per month.

Check: SIM Unlock Software Free Download

Final Words:

These are all the top best PBX software in 2022. Please use any one of your favorite free PBX systems and share your thoughts in the below comment section. I hope this guide will help you to choose the best PBX for your small business needs. If you have any doubts about the above guidelines please let us know in the below comment section. Thanks for your visit.

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