Best On-Premises UCaaS Platforms
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Compare the Top On-Premises UCaaS Platforms as of July 2026
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What are On-Premises UCaaS Platforms?
Unified Communications as a Service (UCaaS) platforms deliver cloud-based communication and collaboration tools that enable organizations to connect employees, customers, and partners through a single integrated solution. These platforms combine voice calling, video conferencing, team messaging, SMS, file sharing, presence, voicemail, and collaboration capabilities while eliminating the need for on-premises communications infrastructure. UCaaS solutions often include enterprise telephony, mobile and desktop applications, call routing, meeting management, contact synchronization, and administrative controls to support hybrid and remote workforces. Many platforms integrate with CRM systems, contact center software, productivity suites, identity providers, and business applications to streamline communications and workflows. By consolidating business communications into a scalable cloud service, UCaaS platforms help organizations improve collaboration, increase productivity, reduce IT complexity, and lower communication costs. Compare and read user reviews of the best On-Premises UCaaS platforms currently available using the table below. This list is updated regularly.
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1
PBXware
Bicom Systems
Our platform is built for service providers delivering unified communications as a managed service under their own brand. Multi-tenancy means each client gets an isolated configuration on a shared installation, which keeps infrastructure lean and margins healthy as the client base grows. For providers with clients running full contact center operations, our omnichannel CC offers agent and supervisor workspaces, skill-based routing, dialer, and 40 plus reports. The full UC stack is included across all plans: voice, video, chat, meetings, and v8 AI features covering Voice Agents, Live Transcription, and multi-CRM support with automatic activity logging across channels and devices. gloCOM Next is the client-facing app, fully brandable. We handle development, updates, and support, so providers focus on growing their business. -
2
Yeastar P-Series PBX System
Yeastar
Focusing on delivering "Easy-first Unified Communications", Yeastar P-Series Phone System offers companies of all sizes with a complete package for calls, video, messaging, and integrations, out of the box. -
3
Fuze
Fuze
#1 Global Cloud Communication Platform & Collaboration Software for Enterprises. Simplify the complexity of managing your on-premises communications systems with Fuze. Superior voice quality and uptime through unmetered calling to over 110 countries with over 50 carriers, providing an ideal option for enterprises with a wide-range global footprint. With more than 10 years of experience working with customers around the globe, we can provide a roadmap to ensure you get full value out of your Fuze deployment. The all-in-one application that works seamlessly across all locations and devices, giving a comprehensive view of usage, engagement, and productivity across the organization. Modernize your communications with the #1 global cloud platform for unified voice, HD video calling and conferencing, integrated chatting, content sharing, and contact center.Starting Price: $20 per user per month -
4
Yeastar Linkus UC Softphone
Yeastar
Coordinated with on-premises and cloud PBX, Yeastar Linkus Unified Communications App provides you with easy access to enhanced call efficiency with enterprise-grade telephony features across all devices at your choice, and gives you remote working agility with softphone, instant messaging, presence, file sharing and CRM integration, etc. -
5
FortiVoice
Fortinet
FortiVoice and FortiFone deliver simplified communications with integrated calling, conferencing, chat, fax, and mobility. Fortinet offers enterprise-grade phone systems, combining the all-inclusive FortiVoice system and HD-audio FortiFone. This solution helps organizations keep up with changing communication needs due to evolving infrastructure, remote/hybrid work, and BYOD. Our single platform with integrated calling, conferencing, chat, fax, and mobile support empowers organizations to connect teams and streamline modern communications without increasing resources and costs. FortiVoice delivers a rich set of communications and security features in one intuitive platform to simplify management across offices, devices, and users. FortiVoice is easy to deploy and customize to align with your business workflow for optimal operational efficiency. Built on the latest security and encryption technologies, FortiVoice secure UC protects business conversations, and safeguards information. -
6
Windstream Enterprise UCaaS
Windstream Enterprise
For savvy IT and business leaders, present-day communications are already in the cloud. With the rise of 100% remote workforces, virtual teams need to be totally integrated, so they can connect and collaborate with all the tools necessary to do their jobs. Unified Communications as a Service (UCaaS) delivers on that vision with resilient, cloud-based solutions that can be deployed more quickly, and for less than an on-premises solution. UCaaS is a unified communications solution delivered as a service by Windstream Enterprise. It integrates all key enterprise communication types, including audio, video conferencing, messaging and collaborative web functionality. By integrating these separate tools, UCaaS enhances organizational workflow, operational efficiency, and productivity. When combined with Contact Center as a Service (CCaaS), it also enables a powerful customer service solution. -
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UNIVERGE BLUE
NEC Corporation
Tomorrow's Smart Workspace, Today! NEC UNIVERGE BLUE is a comprehensive Cloud Communications platform delivering leading-edge Messaging, Voice, Video, File Sharing, Chat, Contact Center, and Integrations all-in-one user-friendly platform. Wherever your business operates—the office, at home, on-site—it’s important that employees are equipped with the right tools to be productive and communicate with colleagues and clients from anywhere. Equally important is ensuring a safe, productive work environment for enhancing business communications and customers' experience. Businesses can bring employees and customers together on one of the most inclusive integrated business communications platforms and adopt digital workplace strategies to establish a smooth and secure flow of communications across their enterprise and maximize productivity, departmental efficiencies, and security.Starting Price: $19.40/User/Month -
8
Momentum Telecom
Momentum
We unleash human momentum with collaboration, connectivity, and communications technology. All business is human—and when custom technology empowers human ingenuity, people and companies thrive. High performing teams do more, achieve more, and win more. Companies become agile, efficient, and resilient. Our team takes pride in making technology easy and cost effective. We love what we do—and it shows in the way we partner with you, from our first conversation to ongoing post-install support. Working with over 30,000 customer locations in 65+ countries, we deliver straightforward, secure, and scalable global managed services and advanced collaboration and communications solutions. Together let’s build your human momentum. More at gomomentum.com
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