Best On-Premises Business Phone Systems of 2025

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.

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.

Establish a fully operational contact center from the ground up in just a few hours while integrating cloud functionalities with your existing on-premises hardware. Transition seamlessly from outdated systems to cloud solutions overnight with Ozonetel, where our product specialists will thoroughly assess your needs before suggesting a tailored solution that aligns perfectly with your business objectives. Efficiently unify and automate both digital and voice communication channels, utilizing top-rated dialers to enhance the management of inbound leads and streamline outbound campaigns. You can set up a comprehensive call management system in 24 hours or even less, offering extensive inbound, outbound, and blended call center options. At Ozonetel, we provide secure cloud communication solutions that enhance the customer experience while reducing overall costs for contact centers. Renowned for pioneering the first cloud-based customer experience platform in India, we continue to distinguish ourselves through unmatched customer support and relentless innovation in AI technology. Our commitment to excellence ensures that we remain at the forefront of the industry, constantly evolving to meet our clients' needs.

Toll-free and local numbers are available from more than 160 countries. Forward incoming calls from any phone, PBX, or SIP. Our global network offers multiple layers of redundancy. You can make international outbound calls by using any of your business numbers as a Caller ID. Showing a local caller ID will increase your success rate. To make outbound calls, connect our SIP trunks with your phone system. You can easily set up and modify smart calling routing features such as auto-attendant /IVR, location and time-based routing, and simultaneous ringback tones. Custom greetings, call recording, voicemail, and call recording are all possible. You can easily add or remove virtual numbers, modify calling plans, download call detail records and invoices, modify advanced features, and reach technical support 24/7. Contact your account manager.

Fully featured, cloud-hosted, high quality VoIP service for all of your business needs. Accessible nationwide, locally owned in Southern Utah, and affordable to help your business succeed. Sign up on our website, select how many phones you want, get a copy your bill, and then we will take care of everything from setup to training. We will match the quotes of competitors to prove our low rates. Because we are so confident in our service that we don't require contracts, our service speaks for itself. All our features are included in the price, as well as bundles and packages. Unlimited calls, SMS, EFax dashboards, reporting and analytics, call recording. Professional voice recording. Ring groups, call flow management. IVR systems, mass messaging, voicemail transcription, call logs. 24/7 customer service.

Built for both large organisations and growing businesses, the Yay.com business phone system offers a versatile and dynamic communication solution that both reduces costs and increases business flexibility. With softphone apps that work with the devices you already use, remote and hybrid working is seamless. Collaborate and connect from any location around the world and work the way you want to. Yay provides a platform for distributed workforces in the office, at home or on the go. Benefit from a host of business features including CRM integrations, IVR call menus, call queueing and more. Get started with a free trial and see how we can help your business thrive today.

OfficeConnect™, provides unified voice, conferencing and messaging as well as faxing. Our VoIP phones are more flexible and cheaper than legacy on-premises systems. You can keep your projects moving and synchronize teams with best-in class audio and video conference made easy. UniVoIP encrypts all voice traffic, both from remote and on-site telephones. It uses SRTP with 128 bit AES encryption. SRTP conforms to both the federal standards FIPS 140-2 Certified encryption and the Department of Defense's PKI Digital Certificate.

HoduPBX is the best solution for business communication. HoduPBX's unique user interface and optimal user experience allow businesses to communicate efficiently with their end users. This software provides unparalleled connectivity in an office environment and remote locations, making communication seamless. HoduPBX empowers agents' work management with multitasking capabilities and efficiency. Our IP PBX software is a great choice for business communications. It supports 1000+ concurrent calls and has 10,000 extensions. HoduPBX IP PBX Software offers various sophisticated features such as Add-on Modules, Reseller Module, SIP Trunking, Queue Pro, Voice Transcription, and Webphone. It also offers white label features across IOS, Android, Chrome Extension, Windows, Mac, Linux, and ZohoPhonebridge Plugin.

Discover an extensive array of communication solutions conveniently located in one place. Join Traverse Telecom and enable your customers to connect effortlessly! Elevate your business framework with top-notch phone connectivity that enhances customer experiences. Greet your clients with a reliable standard telephone service, no matter where you are working from. Expand your outreach and connect with international customers through our premier International toll-free 800 numbers. Want to tap into global markets? Open your business to new opportunities by leveraging our Direct Inward Dialing (DID) capabilities available in over 90 countries. Don't let valuable business opportunities slip away due to missed calls; our call forwarding service allows you to direct customer calls to your preferred business location based on your priorities. We offer comprehensive Cloud PBX Solutions, eliminating the need for traditional on-premises systems. With Cloud PBX, you gain unparalleled flexibility and control, all while enjoying a robust suite of advanced features that can enhance your operations. Embrace the future of communication and watch your business thrive.

MikoPBX offers a comprehensive phone solution characterized by high performance, exceptional stability, and extensive features. It can be deployed on-premises through hardware installation or hosted on various cloud platforms like Google Cloud, Amazon Web Services, and Microsoft Azure. Notably, MikoPBX is a free telephone system that provides all essential business functionalities at no cost. Users will appreciate the intuitive web interface, which includes features such as call recording, conference calling, voicemail, call transfers, call pickup, call queues, an interactive voice response (IVR) menu, as well as customizable inbound and outbound call rules. Additionally, the system includes options for managing holiday schedules and night-time call settings. MikoPBX supports the integration of plugins and modules developed globally, allowing for enhanced functionality tailored to specific needs. Importantly, MikoPBX does not impose user licensing fees, making it an economical choice for businesses looking to expand without incurring extra costs for new staff or call recording capabilities. This flexibility in scaling ensures that businesses can grow seamlessly while maintaining a robust communication infrastructure.

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.

Made-in-Canada VoIP solution designed for businesses with 5 or more users. Our VoIP experts will help you choose the right combination of hardware endpoints, network gear and ISP connections for your specific location. We make it easy for your company to communicate with your clients using crystal clear VoIP every single time!

Take charge of your business communications effortlessly, as no technical expertise is necessary. VoIPline Telecom's phone system empowers you with complete oversight of your communications through an intuitive visual block diagram that can be accessed via any web browser. With an easy drag-and-drop feature, you can place over 30 telephony configuration tools onto the canvas, allowing for personalized arrangements to suit your preferences. You can tailor the incoming call flow by connecting various objects, ensuring that the entire process is visually comprehensible even for those without technical knowledge; every step of how an incoming call is managed is clearly displayed. Moreover, you can create multiple separate canvases to organize different call logics through tabs, which helps prevent any confusion that may arise from overloading a single canvas with too many elements. This versatility ensures that your business communication remains streamlined and efficient at all times.

The on-premises business phone solution that provides all the essential tools for your organization to enhance customer interactions. At the core of Mitel's premier on-site communication offerings lies MiVoice Business, which includes MiCollab, MiTeam Meetings, and MiContact Center Business, allowing employees to reap the benefits of unified, scalable, and mobile communication seamlessly. This solution equips your business with everything necessary to elevate communication standards through effective mobility, team collaboration, video conferencing, and outstanding customer experience management. MiVoice Business is tailored to accommodate businesses ranging from 5 to 130,000 users, whether operating from a single location or across multiple sites worldwide. Furthermore, the software installed on Mitel Collaboration Service Appliances can run on standard x-86 servers within a virtualized setup, streamlining operations by reducing the need for multiple appliances—an especially valuable feature for clients opting for a centralized unified communications deployment. With MiVoice Business, organizations can ensure that their communication infrastructure is both flexible and robust, fostering growth and innovation.

Experience a swift return on investment through enhanced cost savings, operational efficiencies, and elevated customer service. Our Call Management System (CMS4) equips organizations with the tools to manage their telephony expenses effectively, offering in-depth performance analytics. Regardless of whether you operate a small system or a vast, globally clustered network, CMS4 supplies the essential information you need in your preferred format. The system can be deployed as an On-Premises, Cloud, or fully managed hosted service solution. CMS4 enables you to analyze traffic at each gateway or trunk group, generating grade of service reports that reveal whether your capacity aligns with demand. By leveraging this data, organizations can ensure their systems operate efficiently to accommodate present needs while also anticipating future demands. This adaptability not only optimizes resources but also positions businesses for sustained growth.

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.

The Horizon hosted phone system is a comprehensive solution for business communication, offering a wide array of both fixed and mobile telephony functions through a user-friendly web interface. As the leading cloud telephony option available today, Horizon boasts an extensive feature set designed to cater to the needs of businesses of all sizes and structures. Cavendish has been a pioneer in providing the Horizon system, accumulating significant expertise in its setup, installation, training, and support for various phone system configurations that contemporary businesses demand. With the capability to implement auto attendant features, businesses can streamline call routing by presenting callers with menu options. Additionally, users can access their phone number and customize settings from any enabled device within the organization, enhancing flexibility and efficiency in communication. This adaptability makes Horizon an invaluable asset for modern companies aiming to optimize their telephony solutions.

Our cloud phone systems come equipped with ITC Cloud, providing high-definition video conferencing along with chat and recording features, in addition to traditional VoIP services. This solution is ideal for maintaining connections with both clients and team members in virtual settings. Are you prepared to enhance your efficiency and collaboration?

Unified Office, Inc., is a top Managed Services Provider for Business Class Communications Services to Small- and Medium-sized Businesses. Unified Office provides fully managed business VoIP services. It integrates a quality and support plan that begins with a prospect engagement and continues through a site survey, network assessment, and ongoing integration, testing, deployment, and support lifecycle. We monitor all end-to–end service assets (on-premise, private/public clouds, software, hardware, quality, availability) round the clock using specially developed diagnostic tools. It is our commitment to support our business customers and resellers that is most important. Large enterprises have been attracted to the Internet of Things (IoT), and have purchased them. Unified Office, a provider of huManaged VoIP services, has extended its one-year-old Internet of Things service.

Whether deployed on-premises or in the Cloud, CX-E provides flawless integration with leading communication platforms such as Avaya, Cisco, Microsoft, Mitel, and NEC, enhancing any existing telephony and email system. It boasts industry-leading features, including comprehensive voice message encryption from start to finish. Users can benefit from a mobile app that enables single number reach, intelligent call forwarding, distinct separation of business and personal calls, inbound call screening, and protection of mobile numbers. The system consolidates voicemail, email, and fax into a unified inbox for ease of access. It also offers text-to-speech, voicemail transcription, and secure messaging features. With speech-enabled technology, users can access their calendars, emails, faxes, and voicemails hands-free and eyes-free. Additionally, the federated presence feature allows users to play personalized greetings based on their calendar availability. CX-E accommodates multiple attendants, provides speech-recognition interfaces, customizable greetings for various departments, multilingual options, and scheduled messages. Furthermore, it enables tailored automated outreach through telephone calls or text messages, enhancing communication efficiency across the board. This comprehensive solution is designed to streamline communication processes and improve overall productivity.

In the digital age, staying connected is more than just making a call. Verge's Business VoIP Phone Systems are feature-rich and offer the flexibility of On-Premises deployment or Verge Dedicated private Cloud. Our VoIP solutions are designed to meet your specific business needs and budget. They not only offer a lower cost of ownership, but also bring the rich features of modern phone systems to the heart of your operations. Verge's Unified Communication Solutions offer a robust suite of solutions designed to streamline collaboration while driving productivity. We enable your team to collaborate and connect from anywhere at any time by integrating voice, data, video and mobile applications onto a single, cohesive platform. Our tailored solutions will keep your business ahead of the competition, fostering innovation and increasing customer engagement.