List of the Top 25 On-Prem Unified Communications Software in 2025

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.

Fuze is recognized as the foremost global platform for cloud-based communication and collaboration specifically designed for enterprises. It simplifies the complexities of managing traditional communication systems, guaranteeing outstanding voice clarity and dependable service with unlimited calls to over 110 countries through more than 50 carriers, making it particularly advantageous for businesses with a strong international footprint. With a decade of expertise in assisting clients globally, we provide a strategic framework to enhance the advantages of your Fuze implementation. This all-encompassing application works seamlessly across different locations and devices, offering valuable insights into user engagement, usage patterns, and overall organizational productivity. Elevate your communication strategies with the leading cloud platform that combines unified voice, high-definition video conferencing, real-time messaging, content sharing, and contact center solutions in one comprehensive package, transforming the way teams work together and interact. By adopting Fuze, you not only embrace the future of communication but also unlock the full capabilities of your enterprise, paving the way for enhanced collaboration and efficiency.

VideoMost Server functions as a self-hosted alternative to Zoom, offering a cost-effective video conferencing solution that can be licensed at a lower price compared to major cloud providers. This platform is designed for enterprises, integrating mobile messaging and content-sharing features for enhanced collaboration. With the ability to host up to 300 video participants, VideoMost includes a variety of collaboration tools such as screen sharing, interactive whiteboards, polls, and a mobile messaging service. It ensures secure communication while allowing users to connect from any device or network. Furthermore, VideoMost is compatible with both Scalable Video Coding (SVC) and MUX (MIX) architectures, optimizing video quality based on network conditions and CPU performance throughout the conference. Additionally, it supports complete interoperability with legacy hardware from brands like Cisco and Polycom, as well as Microsoft software such as Outlook, Exchange, and Skype, making it a versatile choice for organizations seeking reliable video communication solutions.

Empower your video capabilities: Create a personalized video platform that integrates various incompatible tools, protocols, and systems. Alternatively, you can seamlessly embed video features in your applications to enhance user experience without interruptions. Securely connect and collaborate: Count on Pexip for your essential communications while retaining full control over your data and meetings to ensure privacy and security. Unify meeting spaces: Access any meeting from any device, improving the video experience for all attendees and upgrading current hardware setups for modern functionality. Enhance customer interactions beyond video: Turn online visitors into scheduled customer meetings effortlessly. Provide a range of meeting formats, including customized branded video sessions for a professional touch. Next-generation Extended Reality (XR) video platform: Increase productivity by utilizing wearables that offer prolonged battery life. Equip professionals in industries such as manufacturing, engineering, construction, and healthcare with innovative tools that revolutionize business processes and operational efficiency.

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.

UNIVERGE Blue® Cloud Services offers a cohesive and user-friendly unified cloud communications and collaboration experience that brings together people, technology, and communication strategies to support the company's primary goals. The key features include CONNECT (UCaaS), an intuitive and integrated platform designed for enhanced productivity and collaboration; ENGAGE (CCaaS), a secure and customizable Contact Center solution aimed at improving customer interactions; and the EXTEND API, which seamlessly integrates Contact Center and Unified Communications functionalities into daily business applications. Additionally, MEET serves as a powerful meeting tool, offering high-definition audio and video, interactive screen sharing, collaboration features, and advanced A.I. capabilities, while SHARE ensures secure access to the most recent document versions without sacrificing usability. Furthermore, CONNECT BRIDGE allows customers to maximize their investment in NEC phone systems by leveraging cloud-based voice solutions through both desktop and mobile applications. Lastly, the CONNECT+MS TEAMS version is tailored to work alongside Microsoft Teams, further elevating the business communication experience.

The interactions among members of the care team involve a complex web of individuals, technology, hospital systems, and devices. Navigating an extensive flow of information, encountering communication barriers, or facing inefficient processes can complicate your role and adversely affect patient care. Such challenges can hinder your efficiency and ultimately lead to poorer health outcomes for patients. Spok Care Connect® offers a comprehensive solution to these issues. This integrated communication platform enhances collaboration among care teams, facilitates closed-loop communication, and ensures secure messaging, all aimed at optimizing clinical workflows. By utilizing a single communication platform, various challenges across multiple departments and locations within a healthcare system can be effectively addressed, leading to improved operational efficiency and better patient care.

We drive human progress through teamwork, connectivity, and advanced communication technologies. Every aspect of business revolves around people, and when tailored technology enhances human creativity, both individuals and organizations flourish. Teams that excel accomplish greater feats, reach higher goals, and experience increased success. Organizations become more agile, efficient, and adaptable to change. Our team is dedicated to simplifying technology and keeping it affordable. Our passion for our work is evident in how we collaborate with you, starting from our initial discussion and continuing with ongoing support after installation. Serving over 30,000 customer locations across more than 65 countries, we provide clear, secure, and scalable global managed services along with sophisticated collaboration and communication solutions. Let's work together to enhance your human potential and foster innovation. By combining our expertise with your vision, we can create remarkable outcomes.

gloCOM is a powerful desktop Unified Communications solution designed to enhance your business communication by seamlessly integrating with PBXware, our VoIP Telephony Platform. Its main goal is to simplify and improve your daily communication and collaboration activities. This dynamic application incorporates all the necessary tools for efficient teamwork, such as IP Phone integration, Softphone functionalities, instant messaging, conferencing capabilities, access to CRM systems, faxing, file transfers, and many other features. All of gloCOM's offerings are neatly organized within a single, intuitive desktop interface, providing an outstanding user experience across various major desktop platforms. Offered in Office, Business, Agent, and Supervisor Editions, gloCOM customizes its features to boost efficiency and productivity, making it a flexible solution for different business requirements. In addition to its extensive range of tools, gloCOM empowers teams to enhance their connectivity and collaboration, paving the way for more effective operations overall. This makes gloCOM not just a communication tool but an essential asset for any organization aiming to thrive in the modern business landscape.

Telecom providers, along with Unified Communications and OTT services, have the capability to set up, introduce, and profit from a variety of communication services over IP networks. These offerings encompass Unified Communications, Hosted IP PBX / IP Centrex, and SIP Trunking, in addition to various management tools such as DID Management and calling card services. Important components of this system include VoLTE and VoWiFi, which enhance communication efficiency. Among the critical functional modules are Class 4 and Class 5 SIP softswitches, designed for both residential and enterprise telephony solutions, as well as options for convergent online billing, service provisioning, and charging features that can be tailored to user needs. This flexibility ensures that service providers can adapt to the evolving demands of their customers while maximizing their revenue potential.

Bluepulse offers an extraordinary experience that stands apart from other platforms. By interacting at pivotal moments, you can collect vital insights necessary for growth and improvement. Opening lines of communication allows for the validation of the feedback you receive. Furthermore, you have the capability to track progress and key performance indicators, enabling you to make well-informed decisions. Envision having all the necessary tools to nurture meaningful relationships with your team all in one location. There's no requirement to manage numerous applications or sift through various contacts; Bluepulse ensures effortless real-time connections with your entire network. You can say goodbye to waiting for designated times to engage with your organization, as Bluepulse functions as a continuous listening tool that fosters smooth exchanges of feedback and pertinent information. This method allows you to quickly pinpoint areas for improvement or tackle issues as they develop. With Bluepulse, you transition to a more proactive approach, guaranteeing that every individual and element is acknowledged, thereby enriching the overall experience within the organization. Ultimately, the platform empowers you to build a more engaged and interconnected community while ensuring that everyone feels heard and valued.

FortiVoice and FortiFone deliver a comprehensive communication solution that integrates calling, conferencing, chat, fax, and mobility options. By combining FortiVoice's robust system with FortiFone's high-definition audio, Fortinet's enterprise-level phone systems empower organizations to meet the evolving communication needs driven by infrastructure advances, remote or hybrid work settings, and bring-your-own-device practices. This integrated platform brings together various communication tools, allowing teams to collaborate efficiently and navigate contemporary communication obstacles without facing extra resource or financial strain. With the incorporation of calling, conferencing, chat, fax, and mobile features, FortiVoice significantly boosts organizational connectivity and enhances communication workflows. Additionally, the extensive array of communication and security tools within FortiVoice is organized on an intuitive platform, which facilitates management across different devices, users, and locations. Designed for straightforward deployment and customization, businesses can easily adapt it to their unique workflows, thereby increasing operational productivity. Moreover, FortiVoice is equipped with state-of-the-art security and encryption measures, ensuring that business discussions are protected and sensitive data is kept secure, thereby fostering trust and reliability in corporate communications. This blend of advanced functionality and robust security not only makes FortiVoice an indispensable asset for modern enterprises but also positions it as a leader in the unified communication landscape.

The Yeastar Linkus Unified Communications application, designed to work seamlessly with both cloud and on-premises PBX systems, provides users with streamlined call management and advanced telephony capabilities on any device they choose. Additionally, it facilitates the flexibility of remote work through features such as softphone functionality, instant messaging, file sharing, and integration with CRM systems, enhancing overall productivity and collaboration.

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.

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.

For savvy IT and business professionals, contemporary communication strategies are inherently based in the cloud. As fully remote teams become more prevalent, it is crucial for virtual workers to maintain seamless connectivity, enabling collaboration through all essential tools required for their responsibilities. Unified Communications as a Service (UCaaS) encapsulates this idea by delivering dependable, cloud-based solutions that can be deployed more rapidly and at a reduced expense compared to traditional on-premises options. Available through Windstream Enterprise, UCaaS consolidates a range of enterprise communication tools, including audio and video conferencing, messaging, and collaborative web features. By integrating these diverse tools, UCaaS greatly enhances organizational workflows, increases operational efficiency, and drives overall productivity. Moreover, when combined with Contact Center as a Service (CCaaS), it forms a comprehensive solution for customer service, making it an indispensable resource for businesses striving to refine their communication approaches. This synergy ultimately cultivates a more agile and responsive organization, one that is better prepared to tackle the challenges posed by today’s dynamic marketplace. In a world where adaptability is key, leveraging these cloud-based solutions can significantly elevate a company's competitive edge.

Expo XT delivers advanced Unified Communication Analytics that encompass various platforms and channels, significantly improving the effectiveness of communication. This versatile tool helps in managing hunt groups, diagnosing issues with Auto Attendants and IVR systems, and evaluating user performance along with agent metrics, thereby providing essential insights to enhance voice calls, video conferencing, and collaborative efforts. Powered by Power BI, Expo XT integrates effortlessly with numerous systems, including Webex Calling, Cisco UCM, UCCX, CUBE, Zoom, Teams, and NICE CXone, among others. Additionally, it features a cost-effective pricing model that begins with just 100 extensions, making it suitable for organizations of all sizes. By leveraging Expo XT, companies can revolutionize their communication approaches and achieve improved engagement results. Furthermore, the platform's comprehensive analytics empower users to make data-driven decisions, ultimately fostering a more productive work environment.

Communication has transformed in many ways, yet at its core, the most vital tool we depend on remains our voice. Unify OpenScape Voice, a component of the Unify OpenScape Enterprise suite, enables your organization to communicate effectively with colleagues, clients, and all relevant parties, ensuring interactions are not only immediate but also rich in substance. Whether used as a standalone voice solution or in combination with other unified communication systems, Unify OpenScape Voice offers carrier-grade dependability, strong security features, and remarkable scalability—capable of accommodating up to 100,000 users per node—alongside flexible deployment options available in both on-premise and cloud configurations. This solution facilitates a smooth integration between voice services and various functions such as mobility, video conferencing, chat, messaging, presence, and a unified number service. Additionally, you can seamlessly integrate voice functionalities into your existing business applications without needing to revamp your current multi-vendor voice infrastructure, all accomplished through a unified, coherent framework. As a result, organizations can significantly improve their communication strategies while ensuring both adaptability and dependability. Ultimately, Unify OpenScape Voice positions businesses to thrive in a fast-paced digital landscape.

The Kurmi MACD Enterprise software enables streamlined management of communication systems, appealing to system administrators who appreciate the ease of using a single platform. This comprehensive solution supports multi-vendor, cloud-based, and on-premise environments, providing the necessary flexibility for integrating various services and vendors. With the automation of routine tasks, system administrators can experience a significant reduction in support costs, allowing them to focus on their core competencies. Consequently, this leads to enhanced end user satisfaction and a decrease in errors across the board. The software also facilitates the automation of the provisioning process, ensuring efficient operations and minimal mistakes. Users can save valuable time and maintain confidence in their systems' performance. Additionally, Kurmi seamlessly connects enterprise communication systems with corporate IT applications, including HR and IT service management tools like Workday, ServiceNow, and OTRS, among others. This integration further enhances the overall efficiency of communication management within organizations.

CX-E seamlessly integrates with top communication platforms such as Avaya, Cisco, Microsoft, Mitel, and NEC, whether installed on-premises or utilized in the Cloud, significantly enhancing existing telephony and email infrastructures. It features cutting-edge capabilities, including end-to-end encryption for voice messages, ensuring maximum security. Users can take advantage of a mobile application that offers single number reach, smart call forwarding, clear delineation between personal and business calls, inbound call screening, and safeguarding of personal mobile numbers. The system effectively compiles voicemail, email, and fax into a single inbox, simplifying user access. Additional functionalities include text-to-speech, voicemail transcription, and secure messaging options. With speech-enabled technology, individuals can manage their calendars, emails, faxes, and voicemails without needing to use their hands or eyes. Moreover, the federated presence feature allows users to set personalized greetings that reflect their calendar schedules. CX-E supports multiple attendants, incorporates speech recognition interfaces, offers customizable greetings for various departments, provides multilingual support, and allows for scheduled messages. It also facilitates personalized automated outreach via phone calls or text messages, boosting communication efficiency overall. This all-encompassing solution is meticulously engineered to enhance communication workflows and significantly elevate productivity levels in any organization. Furthermore, its versatility ensures that businesses of all sizes can tailor the system to meet their specific needs and improve their operational effectiveness.

For over ten years, ConferenceManager (CM) has established itself as an essential resource for both federal and enterprise environments. Renowned for its user-friendly interface, adaptability, and robust capabilities, CM continues to bolster its reputation for dependability and high quality. What sets ConferenceManager apart is its remarkable flexibility in accommodating the diverse demands of any organizational workflow. Unlike many enterprise solutions that struggle with effective communication and collaboration among various employee types, ConferenceManager excels in this area. While it serves as a conventional conferencing solution, it is also meticulously crafted to integrate seamlessly with specific industry workflows. Its emphasis on adaptability—whether in terms of scalability or available features—provides customers with a distinctive chance to create a tailored tool that enhances business processes and optimizes productivity. Furthermore, the Operator Console serves as a vital component, offering real-time support and monitoring capabilities for the ConferenceManager system, ensuring that users have the assistance they need at all times. This comprehensive approach to functionality solidifies ConferenceManager's position as a leader in the conferencing solutions market.

Intalk.io is an all-encompassing call center software based in India, tailored to provide sophisticated communication capabilities ideal for larger enterprises. This platform seamlessly combines multiple business communication channels—such as voice, email, SMS, web chat, and social media—into a unified and effective Customer Experience Management system. By utilizing its Cloud Contact Center Software, users can benefit from a more efficient process as cutting-edge solutions enhance workflow organization. For businesses that place a high value on customer experience, Intalk.io stands out as an exceptional option, ensuring that your clients have smooth and enjoyable interactions with your brand. This call center management tool is crafted to help you address any obstacles while building more robust relationships with your customers. When customers are satisfied, they often become your strongest advocates, promoting your services through positive recommendations. Prioritizing customer experience is not merely advantageous but vital for your business's growth and sustainability. Investing in customer satisfaction today promises significant returns and fosters long-term loyalty to your brand, ensuring a thriving future.

Comprehensive omni-channel software solutions integrate multiple communication methods, including Voice, SMS, WebChat, and various social media platforms. They boast a TCPA-compliant manual dialing system that is enhanced with predictive, progressive, and power dialers. In addition to these features, they provide ACD/queues, capabilities for call and screen recording, sentiment analysis, as well as tailored dashboards and sophisticated reporting tools equipped with automation options. Quality Assurance is embedded in the system, which includes automated call scoring, and is further enhanced with AI-driven solutions for Voice, Chat, and SMS BOTs. Moreover, the platform offers CPaaS for the automated acquisition and management of phone numbers through our carrier network, facilitating seamless connectivity and operational efficiency across all communication channels. This all-encompassing framework empowers businesses to refine their customer engagement strategies and significantly improve interaction quality. As a result, organizations can better meet their customers' needs and drive long-term loyalty.

In today's digital landscape, maintaining connections goes beyond just voice calls. Verge's Business VoIP Phone Systems are packed with features and provide the option of either On-Premises installation or a Verge Dedicated private Cloud setup. Our VoIP offerings are crafted to align with your unique business requirements and financial constraints. They not only reduce overall costs but also incorporate the advanced functionalities typical of contemporary phone systems into your operations. Additionally, Verge's Unified Communication Solutions present a comprehensive array of tools aimed at enhancing teamwork and boosting efficiency. By seamlessly merging voice, data, video, and mobile applications into a unified platform, we empower your team to communicate and collaborate from virtually anywhere at any time. Our customized solutions will not only keep your business competitive but also encourage innovation while enhancing customer interactions significantly. In this fast-paced environment, adapting to modern communication demands is essential for sustained growth and success.