Best PBX Software for Small Business

Find and compare the best PBX software for Small Business in 2025

Use the comparison tool below to compare the top PBX software for Small Business on the market. You can filter results by user reviews, pricing, features, platform, region, support options, integrations, and more.

  • 1
    3CX Reviews
    Top Pick

    3CX

    Free for up to 10 users
    1,109 Ratings
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    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.
  • 2
    Thirdlane Reviews
    Top Pick
    A versatile platform and applications tailored for MSPs and UCaaS Providers. Elevate your business with contemporary communication and phone systems, enhancing customer experience without significant upfront expenses. Chosen by a multitude of global customers, UCaaS providers, and resellers, Thirdlane is the preferred solution for those seeking a competitive advantage. Whether for businesses of any scale, government agencies, or call centers, Thirdlane's reliable and user-friendly multichannel communication solutions boost productivity, customer engagement, sales, and cost efficiency. Discover how Thirdlane can bolster your organization; request a quote today. In addition to the telephony features of the Thirdlane Multi Tenant PBX or Thirdlane Business Phone System, customers gain entry to the Thirdlane Connect application (desktop&mobile), covering chat, voice and video calls, conferencing, screen sharing, along with integration capabilities with CRM and diverse applications.
  • 3
    PBXware Reviews
    Top Pick
    PBXware is the first and most established IP PBX Professional Open Standards Turnkey Telephony Platform. PBXware has been providing flexible, reliable and scalable Next Generation Communication Systems (NGCS) and VoIP solutions to small and medium-sized businesses (SMBs), enterprises and Internet Telephony Service Providers, (ITSPs), call centers and governments around the world since 2004. This is done by combining the best of the latest technologies. Bicom Systems softswitch is available in the Business, Call Center, and Multi-Tenant Editions. Each edition supports specific features that maximize performance, reliability, expandability, and expandability.
  • 4
    VitalPBX Reviews
    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.
  • 5
    astTECS Reviews
    *astTECS IPPBX system is the ideal solution for any business, large or small. *astTECS PBX has all the top-end features at an affordable price and is TEC certified by DoT (Govt of India). *astTECS IPPBX solution allows your business to be flexible, innovative, competitive, and future-ready while reducing telecom expenses. *astTECS Call Center Dialer is an omnichannel contact centre solution that offers advanced features and a real-time dashboard for agent monitoring. Advanced analytics and AI-based call center dialer will improve agent productivity and customer engagement. *astTECS provides a complete call recording solution for your company. *astTECS voice recorder is easy to use and offers advanced features. Integration with any PBX is seamless. Supports ISDN/PRI, IP, analog lines and mobile to record all incoming and outgoing calls.
  • 6
    OpenSIPS Reviews
    OpenSIPS is an open-source SIP proxy/server designed for handling voice, video, instant messaging, presence, and various other SIP extensions. This versatile signaling SIP server caters to carriers, telecom operators, and ITSPs, providing solutions for diverse applications such as Class 4 and Class 5 residential platforms, trunking and wholesale services, enterprise and virtual PBX systems, session border controllers, application servers, load balancers, IMS platforms, call centers, and much more. Its high throughput capability supports tens of thousands of calls per second and millions of simultaneous connections, making it a preferred choice for various SIP scenarios and services. OpenSIPS excels due to its flexible routing and integration options, which allow for custom routing logic through routing scripts and numerous interfacing APIs. With over 120 modules available, it facilitates effective application development for SIP handling, backend operations, and routing logic. Additionally, the 3.2 release of OpenSIPS underwent a thorough security audit, enhancing its safety and reliability for users across the board. This robust framework not only meets current demands but also continuously evolves to address future challenges in the telecommunications landscape.
  • 7
    CompletePBX 5 IP PBX Reviews
    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.
  • 8
    FusionPBX Reviews

    FusionPBX

    FusionPBX

    $100 per month
    FusionPBX serves as a versatile solution for both single and domain-based multi-tenant PBX setups, functioning as a carrier-grade switch, call center system, fax server, VoIP server, voicemail server, conference server, and voice application server, among other roles. Meanwhile, FreeSWITCH™ stands out as a highly adaptable and scalable communication platform that operates across multiple threads and platforms. It boasts an impressive array of features, including unlimited extensions, voicemail-to-email, music on hold, call parking, call center capabilities, call queues, and phone provisioning, catering to businesses of all sizes. By delivering corporate-level phone system functionalities, it meets the diverse needs of small, medium, and large enterprises alike. Significant efforts have been invested in enhancing security, resolving issues, and refining the codebase. Furthermore, ongoing advancements are being made in preparation for an upcoming release, with notable progress achieved; the master branch has outpaced the current version in several respects. As the team works meticulously to finalize the essential updates, anticipation builds for the enhancements that will accompany this release. The commitment to continuous improvement ensures that the platform will remain competitive and relevant in the rapidly evolving telecommunication landscape.
  • 9
    Vodia PBX Phone System Reviews
    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.
  • 10
    Dial-Office IP PBX Reviews

    Dial-Office IP PBX

    Dialexia Communications

    Dial-Office is an adaptable and comprehensive IP PBX software crafted specifically for small and medium-sized businesses as well as start-ups eager to leverage the advantages of VoIP technology. Utilizing the SIP standard framework, this IP PBX software offers a variety of sophisticated phone functionalities that were once limited to expensive, traditional circuit-switched enterprise telephone systems. The Dial-Office IP PBX software ensures dependable and affordable unified communications for small to mid-sized enterprises over a well-established Local Area Network. This award-winning VoIP solution guarantees users exceptional voice clarity and a range of business management tools aimed at boosting productivity, reducing communication expenses, and improving customer service. In addition to these benefits, the platform boasts features that cater to the specific needs of modern businesses, making it a versatile choice for enhancing communication efficiency.
  • 11
    Yeastar K2 IP PBX Reviews
    Yeastar K2 IPPBX is available as both hardware and software. It supports 2000 users, 500 concurrent conversations, and 400 VoIP trunks across multiple locations. This gives medium and large enterprises full flexibility and capability. Yeastar K2IP PBX is designed to meet the communication needs of today and tomorrow. It offers enterprise-level features and exceptional reliability. It also allows remote working with next-level Linkus UC Softphone.
  • 12
    Yeastar P-Series PBX System Reviews
    Yeastar P-Series PBX Systems is more than a PBX. It is a converged system designed for SMEs with higher expectations in business communications. The P-Series is a "PBX-Plus-More” solution that unifies voice, video, applications and collaboration. This allows SMEs to achieve more productivity, fill the UC gap and complete more complex tasks.
  • 13
    Avaya IP Office Reviews
    Our award-winning Avaya IP Office, accessible worldwide, provides a comprehensive unified communications platform that is both implemented and managed on-site. To enhance the interactions and experiences of both your customers and employees, delve into the extensive capabilities available with IP Office. You can analyze customer calls effectively by utilizing features such as call recording, tracking, and reporting. With the Avaya Call Reporting functionality integrated into IP Office, you can capture and document incoming calls seamlessly. Furthermore, you have the option to incorporate real-time call center agent seats and dashboards to optimize call management processes. When you pair Avaya IP Office with a subscription to Avaya Spaces, you unlock a versatile application that encompasses voice, video, messaging, conferencing, and calendar functionalities, all of which are accessible from any device and location. This integration not only streamlines communication but also enhances overall productivity across your organization.
  • 14
    Pulsar360 Reviews
    Customers can now seamlessly operate from any location thanks to a comprehensive mobility solution that includes essential features for critical operations. Our services allow you to reduce costs through integrated redundancy and the rapid setup of SIP trunks, DIDs, and toll-free numbers. Pulsar360 Corporation’s Voice over IP (VoIP) offerings ensure superior voice communication that can be utilized over cost-effective broadband connections, whether from other providers or through our own managed carrier services. By consolidating their communication needs into a single network connection for both phone and high-speed internet services, clients not only save money but also enhance their productivity. Having dedicated over a decade to refining our VoIP platform, we have developed one of the most advanced and highly automated systems available in North America. This significant progress enables us to provide immediate setup of SIP trunks, hosted and hybrid VoIP PBXs, local and international DIDs, toll-free numbers, and sophisticated management features. With such innovations, businesses can experience a transformation in how they communicate and operate on a daily basis.
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