List of the Top 15 PBX Software for Windows in 2025

3CX is a versatile, software-driven IP PBX built on open standards that delivers comprehensive Unified Communications straight out of the box. It caters to businesses of all sizes and across various sectors, offering a full suite of features that range from mobility and presence indicators to sophisticated call center functionalities, all at a significantly reduced cost. This platform is particularly well-suited for remote work environments, featuring mobile applications, video conferencing capabilities, and live chat integration for websites. Installation, management, and maintenance of the PBX are straightforward, allowing users to easily handle it themselves on their own hardware, a dedicated server, or via a cloud environment. Alternatively, users can opt for 3CX's hosting services to simplify their setup even further. With its user-friendly design and extensive feature set, 3CX empowers companies to enhance their communication strategies effectively.

A dynamic platform and specialized applications designed specifically for MSPs and UCaaS Providers. Transform your business with modern communication and telephony systems that improve customer interactions while minimizing upfront investments. Widely adopted by numerous international clients, UCaaS providers, and resellers, Thirdlane stands out as the go-to solution for those aiming to gain a competitive edge. Whether serving enterprises of various sizes, governmental organizations, or call centers, Thirdlane's dependable and intuitive multichannel communication solutions enhance productivity, foster customer engagement, drive sales, and improve cost-effectiveness. Explore how Thirdlane can strengthen your organization by requesting a quote today. Additionally, alongside the telephony features offered by the Thirdlane Multi Tenant PBX or Thirdlane Business Phone System, customers also enjoy access to the Thirdlane Connect application (available on both desktop and mobile), which encompasses chat, voice and video calls, conferencing, screen sharing, and seamless integration with CRM systems and various applications, providing a comprehensive communication experience. This robust array of features is designed to meet the evolving needs of today's businesses.

PBXware stands out as the original and most prominent IP PBX Professional Open Standards Turnkey Telephony Platform available today. Since its inception in 2004, PBXware has been delivering adaptable, dependable, and scalable Next Generation Communication Systems (NGCS) alongside VoIP solutions tailored for small and medium-sized businesses (SMBs), large enterprises, Internet Telephony Service Providers (ITSPs), call centers, and various governmental agencies across the globe. This achievement is realized by integrating the finest elements of cutting-edge technologies. The Bicom Systems softswitch is offered in several editions, including Business, Call Center, and Multi-Tenant, with each edition designed to support specific features that enhance performance, reliability, and expandability, ensuring users get the most out of their systems. This versatility makes PBXware a preferred choice for organizations seeking robust telephony solutions.

VitalPBX is a comprehensive PBX platform built on Asterisk and designed to operate on Centos 7. This powerful and adaptable platform enables users to effortlessly manage their PBX systems with ease. With an intuitive user interface complemented by helpful tooltips, navigating through the system is straightforward. It is essential for telephony systems to remain vigilant about potential security vulnerabilities and implement measures to mitigate these risks. VitalPBX provides multiple layers of defense to safeguard against cyber threats in the realm of VoIP communications. Moreover, its security features ensure that users can maintain a reliable and secure communication environment.

The *astTECS IPPBX system serves as the perfect solution for businesses of all sizes, ensuring a comprehensive set of high-end features at a reasonable cost while holding TEC certification from the Government of India. This innovative PBX solution empowers organizations to be adaptable, forward-thinking, and competitive, all while streamlining telecom costs. Additionally, the *astTECS Call Center Dialer stands out as an omnichannel contact center solution, featuring a sophisticated real-time dashboard to monitor agents effectively. With the incorporation of advanced analytics and AI-driven capabilities, this dialer significantly enhances both agent productivity and customer interactions. Furthermore, *astTECS offers a robust call recording solution tailored for your business needs, with an intuitive voice recorder that boasts a range of advanced functionalities. Seamless integration with various PBX systems is a key benefit, as it supports ISDN/PRI, IP, analog lines, and mobile networks, ensuring comprehensive recording of all incoming and outgoing calls. This all-in-one solution not only optimizes communication but also facilitates better decision-making through detailed call insights.

Asterisk is a dynamic open-source framework that facilitates the development of a variety of communication applications. It enables a standard computer to function as a powerful communications server. Asterisk is integral to IP PBX systems, VoIP gateways, conference servers, and many other customized solutions. Its user base includes small businesses, large corporations, call centers, telecom operators, and government entities around the world. Provided free of charge, Asterisk is backed by Sangoma's support. Currently, there are over a million Asterisk-powered communication systems in operation across more than 170 countries. Notably, virtually all companies within the Fortune 1000 list leverage Asterisk in some form. Frequently adopted by system integrators and developers, Asterisk can serve as the basis for a complete business phone system or be used to enhance an existing setup or link various systems. Whether you aim to design a bespoke system using Asterisk or are interested in acquiring an effective and affordable turnkey solution, there are numerous options to explore that can help you find the perfect match for your requirements. As it adapts to technological advancements and user needs, Asterisk remains a key player in the evolving landscape of modern communication solutions. Its ongoing development ensures users continue to benefit from innovative features and improved performance.

HoduPBX stands out as an exceptional choice for enhancing business communication. Its distinctive user interface, combined with an optimal user experience, ensures that businesses can interact efficiently with their clients and stakeholders. This software excels in providing seamless connectivity, whether in a traditional office setting or remote locations, thereby facilitating smooth communication. Additionally, HoduPBX enhances agents' productivity through its multitasking features and streamlined operations. As a robust IP PBX solution, it can handle over 1000 concurrent calls and accommodates up to 10,000 extensions, making it an ideal option for diverse business needs. The HoduPBX IP PBX Software is equipped with a range of advanced functionalities, including Add-on Modules, a Reseller Module, SIP Trunking, Queue Pro, Voice Transcription, and Webphone capabilities. Moreover, it supports white label options across various platforms such as iOS, Android, Chrome Extension, Windows, Mac, Linux, and the ZohoPhonebridge Plugin, ensuring versatility and adaptability for all types of users. This comprehensive feature set positions HoduPBX as a leading solution in the realm of business communication technologies.

This PBX software platform is crafted for straightforward installation and configuration, ensuring full compatibility with our telephony hardware. It is specifically tailored to meet the needs of small and medium businesses (SMBs) that aspire to utilize a premium phone system akin to those found in larger enterprises, all while avoiding excessive expenses. OpenPBX harnesses the accessibility and effectiveness of desktop computers, effortlessly merging them with conventional telephone handsets to offer sophisticated features and complete oversight of your communication system. Whether you're looking to connect to primary rate (E1/T1) trunk lines or regular POTS lines, Voicetronix supplies the necessary line interface hardware. Customers have the option to utilize the OpenPBX Do-it-Yourself (DIY) feature, enabling them to build their own phone systems with cost-effective PC servers operating on Linux and regular analog telephones. By taking charge of the setup and maintenance of their phone systems, users can free themselves from reliance on technicians for installation and support. Furthermore, with a simple web browser interface, users can easily manage their voicemail messages, enhancing the overall experience of communication management. This flexibility empowers users to tailor their phone systems to their specific preferences and requirements.

Vodia is a PBX solution that operates on both Windows and Linux platforms, delivering a comprehensive suite of advanced functionalities typically associated with robust PBX systems, such as call queues, auto attendants, and call forwarding capabilities. Additionally, Vodia stands out as a leader in Multi-Tenancy, allowing users to deploy it on a dedicated virtual machine in the cloud or on-site while managing numerous fully qualified domain names for different clients. You can experience Vodia by signing up for a free demo license, valid for 60 days, to explore its features firsthand. This trial is an excellent opportunity to see how Vodia can cater to your specific telecommunication needs.

Dial-Office is a flexible and all-encompassing IP PBX software designed for small and medium-sized enterprises, as well as start-ups, that wish to harness the benefits of VoIP technology. By employing the SIP standard architecture, this IP PBX solution provides an array of advanced telephony features that were previously available only in costly traditional circuit-switched corporate phone systems. This reliable and cost-effective unified communications tool ensures that small to mid-sized businesses can operate effectively over a well-established Local Area Network. Recognized for its excellence, this VoIP solution offers outstanding voice clarity along with various business management tools that aim to enhance productivity, lower communication costs, and elevate customer service standards. Moreover, the platform includes features tailored to the specific demands of contemporary businesses, making it a practical option for improving communication efficiency and overall collaboration. Ultimately, Dial-Office empowers organizations to adapt and thrive in an increasingly digital world.

The Yeastar K2 IPPBX can be accessed in both hardware and software formats, accommodating up to 2000 users, managing 500 simultaneous calls, and supporting 400 VoIP trunks across various sites. This flexibility makes it an excellent choice for medium to large businesses that require robust communication solutions. Designed to cater to the evolving demands of modern communication, the Yeastar K2 IPPBX provides advanced enterprise features along with remarkable reliability. Additionally, it facilitates remote work environments through the innovative Linkus UC Softphone, ensuring seamless connectivity for users regardless of their location. By incorporating this technology, companies can enhance their operational efficiency and improve collaboration among team members.

All the necessary resources for interacting with the FreeSWITCH platform are available right here. FreeSWITCH acts as a Software Defined Telecom Stack, enabling a transition from conventional telecom switches to a versatile software-based solution that can run on any standard hardware, from a Raspberry PI to a robust multi-core server, thus amplifying the telecommunications functionalities of various devices. When integrated with our cloud platform, SignalWire, FreeSWITCH can effortlessly connect to external networks and scale operations as needed. To ease your onboarding process, a pre-configured virtual machine is offered, equipped with extensive written and video tutorials, so you can quickly get started with just a VirtualBox installation. For those who are more technically inclined, comprehensive instructions are provided for compiling FreeSWITCH from source or exploring alternative manual installation techniques. Furthermore, if you have access to a Debian instance, you will find detailed guidance on installing our packages from the provided link, allowing for a flexible approach to implementing FreeSWITCH. This platform truly empowers both novices and experienced developers, making telecommunications more approachable than ever while fostering innovation and creativity in the field. Whether you’re looking to build a simple communication tool or a complex telecom solution, FreeSWITCH has the capabilities to meet your needs.

The Yeastar P-Series PBX Systems transcends traditional PBX functionality, offering a comprehensive solution tailored for small and medium-sized enterprises that demand excellence in business communication. As a "PBX-Plus-More" offering, it integrates voice, video, applications, and collaborative tools, enabling SMEs to enhance productivity significantly, bridge the gaps in unified communications, and tackle more intricate tasks with ease. This innovative system empowers businesses to streamline their operations and improve overall efficiency.

Kamailio® is a powerful open-source SIP server that emerged from the earlier versions of OpenSER and SER, and is released under GPLv2+, designed to efficiently handle thousands of call setups per second. This versatile platform is ideal for building large-scale VoIP systems, facilitating real-time communication, managing presence, supporting WebRTC, enabling instant messaging, and accommodating numerous other applications. Moreover, Kamailio excels in scaling SIP-to-PSTN gateways, PBX systems, and media servers, such as Asterisk™, FreeSWITCH™, or SEMS, with remarkable ease. Its rich feature set encompasses support for asynchronous protocols like TCP, UDP, and SCTP, ensuring secure communication through TLS for voice, video, and text, in addition to compatibility with WebSockets for WebRTC. The server also fully supports both IPv4 and IPv6, offers straightforward instant messaging and presence functionalities via an integrated XCAP server and MSRP relay, and facilitates asynchronous operations effortlessly. Additionally, it includes IMS extensions for VoLTE, ENUM capabilities, along with features for DID and least cost routing, load balancing, and routing failover to enhance reliability. Kamailio's comprehensive suite of accounting, authentication, and authorization features ensures robust security, while it seamlessly integrates with a variety of backend systems such as MySQL, Postgres, Oracle, Radius, LDAP, Redis, Cassandra, MongoDB, and Memcached. With all these advanced capabilities, Kamailio stands out as a highly adaptable solution for contemporary communication infrastructures, making it a preferred choice among developers and organizations alike.

R.E. Communications specializes in an IP-PBX system powered by Asterisk that is compatible with standard SIP phones and offers an extensive array of features for settings ranging from a single phone to as many as 4000. These systems also support SIP trunking, enabling users to replicate the capabilities of a hosted solution while achieving considerable cost reductions per seat. For example, a configuration intended for 10 phones can function effectively with just 4 to 6 SIP trunks, which leads to significant savings compared to the costs associated with a hosted solution for an equivalent number of seats. This adaptability and efficiency make R.E. Communications’ solutions highly attractive to businesses seeking to enhance their communication frameworks while optimizing their budgets. Ultimately, such cost-effective and scalable options empower organizations to tailor their communication needs to their specific circumstances.