Best Unified Communications Software for Linux
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Compare the Top Unified Communications Software for Linux as of June 2025
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What is Unified Communications Software for Linux?
Unified communications software integrates various communication tools and channels—such as voice calls, video conferencing, instant messaging, email, and collaboration platforms—into a single, streamlined system. These platforms help businesses improve communication and collaboration across teams, regardless of their location, by providing real-time access to different communication methods through a single interface. Unified communications software often includes features like call routing, voicemail, file sharing, screen sharing, and presence indicators to enhance productivity and reduce communication barriers. By using this software, organizations can simplify workflows, improve customer service, and ensure more efficient internal communication. Compare and read user reviews of the best Unified Communications software for Linux currently available using the table below. This list is updated regularly.
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1
3CX
3CX
3CX is a software-based, open standards IP PBX that offers complete Unified Communications, out of the box. Suitable for any business size or industry 3CX can accommodate every need; from mobility and status to advanced contact center features and more, at a fraction of the cost. Ideal for companies working remotely, 3CX includes mobile apps, video conferencing and website live chat. Installation, management and maintenance of the PBX is so easy that you can effortlessly manage it yourself, whether on an appliance or server at your premise on Windows, Linux or in the cloud. Alternatively you can choose to have it hosted by 3CX for a completely hassle-free solution.Starting Price: Free for up to 10 users -
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VirtualPBX
VirtualPBX
VirtualPBX stands as an acclaimed Business Phone System Provider, renowned for its award-winning services. Offering industry-leading features, boasting 99.999% reliability, and competitive pricing, VirtualPBX equips businesses with top-tier communication tools for seamless unified communications. Catering to a diverse range of enterprises, from entrepreneurs to contact centers seeking a complete contact center solution. VirtualPBX serves as the ultimate destination for modern business VoIP needs. With plans starting at just $9 per month, VirtualPBX ensures accessibility and excellence in communication solutions. Get a free demo today!Starting Price: $9/month -
3
Cloudbrink
Cloudbrink
If you’ve ever dealt with slow VPNs, or clunky ZTNA agents that degrade app performance, you’re not alone. Many IT teams are stuck balancing security with usability—and often end up sacrificing both. Here is a different approach. The high-performance ZTNA service that is part of a personal SASE solution from Cloudbrink can upgrade or replace traditional VPNs while fixing the performance and complexity that come from other vendors in the ZTNA and SASE space. Built as a software-only service, Cloudbrink delivers sub-20ms latency and 1Gbps+ speeds per user using dynamically deployed FAST edges and a proprietary protocol that recovers packet loss before it impacts the app. Security isn’t bolted on—it’s built in. With mutual TLS 1.3, short-lived certs, and no exposed IPs, Cloudbrink provides real zero trust without making users suffer through poor connections or overloaded POPs. If you’ve been burned by “next-gen” solutions that still feel like 2008, it might be time for something new. -
4
Brosix
Brosix
Brosix Instant Messenger (IM) supports businesses to streamline and secure their team communication through private team communication networks. Brosix provides businesses with all of the tools they need to increase team productivity in one user friendly and fully encrypted platform, including file transfer, screen sharing, group and private chat, virtual whiteboard and more. Brosix IM’s private networks help businesses to increase team collaboration and efficiency, reduce overhead, and guarantee data privacy. Team networks take just minutes to set up, so businesses can immediately begin reaping the benefits of their all-in-one, and fully administrable communication network.Starting Price: $4 per month -
5
T-Max Phone Systems
T-Max
The Hosted Business Phone System PBX will make any company sound and function like a Fortune 500 company. Your company can have all your calls answered by an auto-attendant allowing for callers to choose departments, extensions, dial by name or many other options. If you are working on the go you can have them automatically transferred to your cell phone. T-Max is fully geo-redundant. In other words, our servers are being hosted in a top-notch data centers throughout the United States. We use multiple carriers ensuring maximum connectivity to the PSTN. T-Max uses high-quality desk phones from Polycom & Yealink, with many different models to pick from to fit your unique environment best. We offer reception consoles, agent phones, wireless phones, and conference room phones. Our Hosted Business Phone System is the best choice for the price on the market today. 1-888-245-3483 Departments Extensions Digital Receptionist Voice Prompts Voice Mail Fax Service and Much MoreStarting Price: $19.99 Mo/Ext -
6
Slack
Salesforce
Slack is a cloud-based project collaboration and team interaction software solution specially designed to seamlessly facilitate communication across organizations. Featuring powerful tools and services integrated into a single platform, Slack provides private channels to promote interaction within smaller teams, direct channels to help send messages directly to colleagues, and public channels that enables members across organizations to start conversations. Available on Mac, Windows, Android, and iOS apps, Slack offers a plethora of features that include chat, file sharing, collaborative workspace, real-time notifications, two-way audio and video, screen sharing, document imaging, activity tracking and logging, and more.Starting Price: $6.67 per user per month -
7
ClickSend
ClickSend
ClickSend offers SMS, MMS, Voice, Online Mail, Email and Fax software for businesses. Our communications and messaging tools are simple to use, automate and integrate. That’s why they’re used by some of the most trusted brands, organisations and developers globally. Built for all, you can access ClickSend via our Dashboard, mobile app, flexible API or 900+ integrations. Plus, ClickSend offers helpful 24/7 support, and lightning fast delivery via a secure and reliable platform. From SMS marketing and alerts to bulk mailouts sent from your browser, join over 90,000+ businesses sending communications around the world. Our 100% uptime guarantee and lightning fast direct routes provide reliable messaging, no matter the channel. From small businesses to enterprise, ClickSend powers billions of messages around the world with 232+ direct carrier connections. Plus, ClickSend is always pay-as-you-go. That’s why ClickSend is business communications, solved.Starting Price: $20 minimum topup -
8
XCastLabs
XCastLabs
The First and Still the Best in VoIP Communication! Our proprietary technology has been providing telecom services for over 20 years. XCast’s broad suite of products—Hosted IP-PBX, SIP Trunking, Carrier Services and Call Center Solutions—are available directly from XCastLabs or through our white label Resellers, our agent partners, carriers or call centers. XCast exceptional service, rates, and products meet the FCC standards for STIR/SHAKEN network compliance. XCast’s Hosted PBX solution is delivered over the Internet to any of your connected devices. Promotional plans start as low as $9.95 per month and include FREE Outbound minutes and a FREE Yealink Business Phone per extension. Sip Trunk Plans begin at $4.95 w/unlimited inbound minutes and free installation. Our Automatic Call Distribution (ACD) system has full reporting, automated customer callback, custom prompts, music on-hold, call recording, call monitoring (with whisper and barge-in), call transfer and more!Starting Price: $4.95/month -
9
Thirdlane
Thirdlane
Thirdlane delivers a versatile platform and flexible applications tailored to managed and cloud service providers seeking competitive differentiation. Their robust yet affordable communications tools allow both small businesses and global enterprises to streamline interactions and enhance customer experience without large upfront costs. The Thirdlane communications platform is a one-stop-shop solution for MSPs, UCaaS providers, and resellers. Its advanced voice, collaboration, and video conferencing tools are designed to be fully customizable and seamlessly integrated with partners’ own branding. Main products: Thirdlane Multi Tenant PBX, Thirdlane Business Phone System and he Thirdlane Connect which provides users with chat, voice and video calls and conferencing, SMS, screen sharing, CRM integration in modern web browsers, on mobile phones, Windows, Linux and Mac desktops., these solutions empower businesses to boost productivity, drive sales & strengthen customer relationships. -
10
Flock
Flock
Your team’s communication hub. Team messaging, video+audio calling, productivity apps and more. Flock makes communication and collaboration effortless. Get all the features you need in one easy-to-use tool. Work smarter with Flock's all-in-one messaging, video conferencing, and productivity tool. Stay connected with Flock's powerful built-in video conference feature. Up to 20 attendees can meet in real-time. You can even screen share with just a click. Powerful search helps you find anything shared in Flock, whether it’s a message, file, or link. Use our powerful suite of business collaboration tools - Shared To-Dos, Polls, Note Sharing, Reminders, and more - to optimize project management. Flock offers over 50 integrations with tools like Asana, Twitter, Googe Drive, and Todoist. Add your apps in Flock with one click and you’ll never need to switch tools to get work done.Starting Price: $4.50 per user per month -
11
PBXware
Bicom Systems
PBXware is the world’s first and most mature IP PBX Professional Open Standards Turnkey Telephony Platform. Since 2004, PBXware has deployed flexible, reliable, and scalable Next Generation Communication Systems and VoIP solutions to Small and Medium sized Businesses (SMBs), enterprises, Internet Telephony Service Providers (ITSPs), Call Centers and governments worldwide by combining the most advanced of the latest technologies. Bicom Systems’ softswitch is offered in the Business, Call Center and Multi-Tenant Editions, each supporting specific features maximizing performance, reliability, and expandability. -
12
Telnyx
Telnyx
See how the developer friendly Telnyx API can transform your business communications. Telnyx is an all-in-one communication platform designed to be tailored exactly to your needs. We created our network with real-time communications in mind so we can deliver quality calls, messaging, and data around the world. Easily build reliable messaging with our SMS API. Keep your data safe by setting up two-factor authentication using SMS or voice codes. Plug and play your VoIP setup in minutes and get carrier-grade voice with elastic SIP trunks. Our cloud-agnostic approach means you can rest easy knowing you are protecting in case of a network failure. With Telnyx deploy communications exactly to specifications. -
13
VideoMost
VideoMost
VideoMost Server is like Zoom, but self-hosted video conferencing server and available for licensing at a fraction of competitors cloud prices Enterprise video conferencing with mobile messaging and content sharing: enable people team work from any device / any network by using powerful and complete VideoMost enterprise-grade secure communication platform. 300 video participants in a conference room with extensive collaboration tools, including docs and screen sharing, whiteboard, mobile messenger, polls and more. Using both Scalable video coding (SVC and MUX) and traditional MCU (MIX) architecture VideoMost automatically and dynamically adjusts video quality to available network conditions and CPU utilization throughout a conference session, and provides total legacy HW (Cisco, Polycom, Avaya, etc) and Microsoft software (Outlook, Exchange, Skype) interoperability.Starting Price: $7 per conference room -
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Pexip
Pexip
Providing seamless video communication to all organizations regardless of technology platforms and security requirements. Complete privacy and control of data: Your way of security is our way of security. Connect the right people at the right time with the right information, and remain compliant with government regulations. Connect any room to any meeting: Delight users with a seamless and intuitive meeting experience, regardless of technology platforms. Build rich and engaging video experiences: Adapt to evolving client needs. Securely embed video in your daily workflows for better connection and engagement with citizens, patients and customers. -
15
Voyced
Voyced
Hosted VoIP solution with a European focus but with presence in over a 165+ countries. As all our solutions are based on Premium Plus we give you the highest possible quality for the lowest price. All carry all types of numbers, from Geographic to National, TollFree and UIFN, Mobile VoIP, Elastic Pool solutions and much more. We also have our own SoftPhone and will soon be launching other Roaming products too.Starting Price: $0.25 per user per month -
16
Sococo
Sococo
Sococo is the virtual office where distributed teams come to work together each day, side-by-side, no matter where team members might be. Down the hall, across campus, or halfway around the world—working in your organization's online office is even more productive than being on the same floor or in the same room.Starting Price: $13.49/user/month -
17
Monster VoIP
Monster VoIP
Monster VoIP was established to distribute superior voice quality and maximized uptime to customers from here in L.A. to New York to Washington, D.C. to Houston to Dallas to Chicago and beyond, while delivering unparalleled service and customer satisfaction. We started by setting up data centers in Las Vegas, New York, Dallas, and Minnesota to ensure geo-redundancy, with all endpoints multi-registered at all four facilities. (This is just a fancy way of saying that multiple locations means you can expect amazing voice quality and unparalleled business phone uptime.) We then made sure to offer a complete suite of communication tools in one platform. This means you and your team only have to learn our easy-to-use user interface for all of your communication efforts. To make good on our customer satisfaction promise, we then decided to provide personalized setup and ongoing 24/7/365 support to every business VoIP customer that walks through our (virtual) doors.Starting Price: $27 /month -
18
Spok Care Connect®
Spok
Communication among care team members involves a complex relationship between people, devices, and hospital systems. You might be struggling with an overwhelming surge of data, gaps in your communication, or inefficient communication workflows. These challenges make your job harder and negatively impact patient outcomes. There’s a solution to help – Spok Care Connect®. Spok Care Connect is the unified communication platform that provides care team collaboration, closed loop communication, and secure messaging to enhance your clinical workflows. It’s possible for one unified communication platform to solve the multiple challenges across different areas, departments, and locations in your health system. -
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Yeastar Cloud PBX (legacy)
Yeastar
Yeastar Cloud PBX (legacy) is a fully-featured future-ready phone system ideally suited for SMBs. With Linkus UC Clients, you will gain easy access to enhanced call efficiency and remote working agility across any device at your choice. With 100% hosted deployment, there is no upfront hardware cost and the in-house management overheads are reduced to almost nothing. Together with easy to use and full compatibility features, any migration or upgrade to Yeastar’s hosted solution will be as easy as a breeze. * Please note that Yeastar P-Series PBX System is the new Yeastar Cloud PBX that comes with versatile call center features and unified communications features. -
20
Sherweb
Sherweb
A secure and reliable solution for your online business. Everything you need to get started. A user-friendly control panel to manage your website. Experienced support technicians. Access to a huge library of pre-configured web apps for your website. With Sherweb as your trusted cloud partner, you’ll be surprised by what you can achieve. Our full-fledged cloud management platform, driven by evolving business needs, empowers IT professionals to leverage agile solutions paired with 5-star service by trusted experts they can count on. We’re born in the cloud – IT folks rest easy knowing our ever-expanding portfolio of innovative products has been hand-picked and pre-vetted, including a selection of proprietary software you won’t find anywhere else. We bring you a mature, powerful platform that doesn’t make you choose between saving time and saving costs. Automate and integrate just about anything, leveraging our cutting-edge APIs.Starting Price: $7.25 per month -
21
2600Hz
2600Hz
An unrivaled UCaaS solution designed to empower Service Provider success. Differentiate your brand and offering in the market with a completely customizable, white label solution. KAZOO is 2600Hz's turnkey UC platform, offering the flexibility you need to provide a superior communication experience. Give your customers a communication solution that will make them successful. 300+ APIs enable you to customize a solution to help your customers do business better. White label your solution to build and maintain your brand recognition in the market. Low upfront costs let you get started quicker and stay cost competitive. Reliability and geo-redundancy ensures your customers are always online. Mobile ready lets your customers get business done when and where they need to. KAZOO is a multi-tenant platform and gives you the ability to open your sales channels. Bring on resellers, go direct, or have an agent model.Starting Price: $3.50/month -
22
Vonix
Vonix
Imagine if your customers could seamlessly communicate with your business how they want to. Calling, SMS, messaging, social, and chat all unified in one interface with one goal: simplifying communication. You’ll want to see what we have in store. With Vonix, you’ll be able to call, text, social message and chat using your business profile from one mobile app. You’ll access all your business phone features as if you were in the office, using your business number from your cell phone. Text or message your customers, and transfer whole conversations with the internal collaboration features. Sync conversations into your customer records and keep everyone in the loop. Access business calling features like interactive voice menus, day/night mode, voicemail transcription & more. Improve satisfaction and get faster resolutions by enabling customers to communicate via their preferred method.Starting Price: $29.99 per user per month -
23
MaxContact
MaxContact
MaxContact is suitable for sites from 6 – 1000+ users, with clients around the world in all sectors including BPO’s, financial services, utility providers and many more. MaxContact is a proven supplier to some of the market leaders in these fields.Starting Price: £49 per month per User -
24
PortaSwitch
PortaOne
An integrated softswitch and billing platform that enables VoIP, OTT and telecom providers to configure, launch and monetize any type of communication services in IP networks: Unified Communications, Hosted IP PBX / IP Centrex, SIP Trunking, DID Management, OTT Voice, calling cards, VoLTE/VoWiFI. Key functional modules: Class 4 and 5 SIP softswitch for residential and enterprise telephony services; convergent online charging, billing and service provisioning solution (optional) PortaOne gives you the tools and solutions that allow you to proudly offer exceptional telecom services, work effectively, and stay competitive in your market. Be free to adapt and develop your own extensions thanks to open architecture and API. Receive fair pricing with unlimited lifelong license for all PortaOne products. From marketing an idea to instant product launch, get smooth delivery and fast monetization.Starting Price: One-time -
25
Ecosmob
Ecosmob Technologies Pvt. Ltd.
Ecosmob offers market-leading expertise and solutions to power businesses across the world implementing trending technologies. Modernize your network with customized solutions that are highly advanced and cost-effective. With extensive expertise in Open Source telephony development, Ecosmob provides innovative VoIP services tailored to suit your business needs. Create interactive, scalable, and robust web applications using the most advanced tech stacks and frameworks. Take your business to the next level with a responsive website designed to be user-friendly and set your brand ahead of your competition. Expand your digital reach and target a wide spectrum of customers via mobile application development services. We build customized, highly scalable, and robust mobile applications to match your business requirements. Unlock new business possibilities and opportunities with AI and ML technologies.Starting Price: Custom -
26
NCP
NCP engineering
For individual workstations, freelancers or smaller installations, NCP Entry Clients offer a wide range of technical features and offer much more than a standard VPN. Our Solution Finder will help you find the right NCP product for your organization. No matter what hardware you use, whether you are looking for a solution for use in your own company or as a partner for your customers, for a few employees or large installations, we will guide you to the right product in just a few steps. With 30 years of experience in remote access environments, NCP is an excellent choice for a complete VPN solution that meets the needs of users, IT administrators and management. NCP’s remote access solutions are fully-automated, highly secure and cost efficient covering important benefits. -
27
grptalk
grptalk
grptalk is an audio conferencing app that lets you talk to a group of people from anywhere, and at any time. Entering PINs, delayed joining times, zero member visibility, and call drops! Traditional conference calling has been blighted by these problems for too long. It took a brave idea, solid planning and a team of dynamic individuals to successfully develop a solution that would simplify conference calling, and solve all the problems of traditional conference calling. -
28
Yeastar P-Series PBX System
Yeastar
More than just a PBX, Yeastar P-Series PBX System is a converged system purposed-built for SMEs that have higher expectations on business communications. As a “PBX-Plus-More” solution, the P-Series unify voice, video, applications, collaboration, and more together, helping SMEs to enable extra productivity, fill the UC gap, and accomplish more sophisticated tasks. -
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Unified communications and collaboration platforms form the basis of some of the most essential business systems. As hybrid working becomes the norm and the demand for a seamless user experience increases, the need for high up-time, fast problem resolution, and intelligent insight has never been more critical. Get the intelligent insight you need to harness innovative new ways to bring people together, from wherever they are. Ensure the tools your organization relies on just work and enhance the way your teams communicate and collaborate. Whether your people are in the office or working remotely, with IR Collaborate you can ensure the lines of communication are always open. Reduce helpdesk calls and troubleshooting time with automated intelligent alerts that predict problems based on trends and real-time events.
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Broadband Dynamics
Broadband Dynamics
Omni Channel software solutions including Voice, SMS, WebChat, social media and more. Includes TCPA compliant enhanced manual dialing solution, predictive, progressive and power dialers. ACD/queues, call recording, screen recording, sentiment analysis, custom Dashboards, enhanced customizable reporting with automation, Quality Assurance including automated scoring of calls, AI Voice, Chat and SMS BOT solutions. CPaaS for automatic ordering and routing of phone numbers on our carrier network.