Best Free PBX Software of 2024

3CX is an open-standards, software-based IP PBX that provides complete Unified Communications right out of the box. 3CX is suitable for all industries and sizes. It can provide everything you need, from mobility and status to advanced call center features and more, at a fraction the cost. 3CX is ideal for remote companies and includes mobile apps, video conference, and website live chat. The installation, management, and maintenance of the PBX are so simple that you can easily manage it yourself, on your own appliance, server, or on a cloud-based platform. You can also choose to have it hosted on 3CX for an easy solution.

VitalPBX is a unified communications PBX platform based on Asterisk (Centos 7). VitalPBX is a robust, scalable platform that will allow you to manage your PBX in a simple and intuitive manner. VitalPBX has a simple user interface and tooltips throughout the system. Telephony systems should be aware of security risks and take steps to avoid them. VitalPBX offers a variety of levels of protection against cyber threats in VoIP.

FreePBX stands as Freedom. FreePBX is the most popular open-source IP PBX in the world. It allows users to create a phone system that suits their needs. Open source communications is a powerful tool. Start building your phone system by taking a look at the many built-in features FreePBX offers. You can transform your FreePBX installation into a robust Unified Communications System with commercial modules from Sangoma or other add-ons. Visit the Knowledge Base at the FreePBX Wiki! FreePBX experts can help you with troubleshooting, installing, updating, and more. FreePBX is completely free to download and to use. Its power comes from a global network of developers who ensure that it remains a high-compatibility and customizable platform with all key features required to build a scalable business telephone system on any budget.

Asterisk is an open-source framework for building communication applications. Asterisk transforms an ordinary computer into a communications host. Asterisk powers IPPBX systems, VoIP gateways and conference servers, as well as other custom solutions. It can be used by small and large businesses, call centres, carriers, government agencies, and other agencies worldwide. Asterisk is open-source and free. Sangoma sponsors Asterisk. Today, more than 1 million Asterisk-based communication systems are in use in more than 170 nations. Nearly all Fortune 1000 customers use Asterisk. Asterisk is most commonly used by system integrators or developers. It can be used to create a complete business telephone system, enhance an existing system, or bridge between systems.

Virtual IP PBX (Private Branch Exchange), or Phone System Appliance – CompletePBX is the heart and soul of Xorcom's hardware and software telephone systems. It's built on top of Asterisk and Linux platforms and is designed for stability and high performance. CompletePBX was built from the ground up to offer ease-of-use, advanced features, and security at all levels. Get a fully functional, free CompletePBX 5 virtual machine evaluation now! CompletePBX certification training is available online for free. It will guide you through the basics of the system. You can save a lot of time and effort if you do it yourself. We can help you get there quicker.

MikoPBX is a fully-featured phone system that offers high performance, stability, and rich functionality. MikoPBX can be installed on-premise (hardware install) or in any cloud service (Google Cloud, Amazon Cloud Solution and Microsoft Azure, for example). MikoPBX is free and provides basic business functionality. The system features a simple web interface that allows for call recording, conference calls and voice mail, voice mail pickup, call transfers and pick up, call queues, interactive voice response menus, and inbound and outside call rules. There are also holiday and night-time call switchers. MikoPBX can be extended with plugins and modules by developers from around the globe. MikoPBX is free and you can add-ons to enhance the capabilities of your PBX. MikoPBX does NOT license each user. You can expand your company without incurring additional costs for call recordings or new employees.

OpenSIPS is an open source SIP proxy/server that supports voice, video, IM and presence. OpenSIPS is a multifunctional, multi-purpose signaling server that can be used by telecoms and ITSPs to provide solutions such as Class4/5 residential platforms. It also supports enterprise/virtual VoIP solutions, session border controllers. Application servers, front-end loadbalers, IMS platforms, call centres, and other solutions. OpenSIPS is recommended for all types of SIP scenarios/services due to its high throughput, tens or thousands of CPS, millions simultaneous calls (see official testing), flexibility of routing, integration, routing scripts to implement custom routing logics, and several interfacing APIs. The application building process is efficient, with more than 120 modules providing features for SIP handling, backend operations and integration. OpenSIPS 3.2 was subject to a security audit. This made everything safer and more secure.

Vodia is a software-based PBX that runs on Windows and Linux. It offers all the advanced features you would expect from a full-featured PBX, including call queues, auto attendants and call forwarding. Vodia is also the pioneer in Multi-Tenancy. You can host Vodia on a dedicated VM( Virtual Machine) in the cloud, premises, and maintain multiple FQDNs for each customer. Sign up for a hosted demo license code for 60 days.

It is easy to install and configure PBX software that is fully supported with our telephony hardware. It is ideal for small to medium-sized businesses (SMBs) who require a more sophisticated phone system than those found in larger companies. However, it does not come with a high price tag. OpenPBX combines the efficiency and ease of use of the desktop computer with the simplicity of a telephone handset to give you advanced features. You can also control your communication system from anywhere. Voicetronix offers line interface hardware that can connect to either standard POTS lines or primary rate (E1/T1) trunklines. OpenPBX's Do-it-Yourself (DIY), option allows customers to create their own phone system with commodity PC servers running Linux or analog telephone handsets. You can set up and manage your own phone system without the assistance of a technician. You can navigate to your web browser and select voicemail messages.