Best Cloud Communication Platform Software for Linux of 2026

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.

1,234 Ratings

Starting Price: Free for up to 10 users

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Adversus

Adversus is a cloud-based outbound communication platform built for sales teams that rely on structured calling. Unlike generic cloud communication tools, Adversus is purpose-built for outbound, combining power dialing, workflow automation, real-time performance analytics, lead management, and compliance tools in one platform. No hardware. No fragmented stack. Operates across 150+ countries with 99.97%+ uptime. ISO certified and SOC 2 compliant. Trusted by B2B sales, insurance, energy, and telecom teams across Europe.

170 Ratings

Starting Price: €100 pr. license

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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 $18 per month, VirtualPBX ensures accessibility and excellence in communication solutions. Get a free demo today!

12 Ratings

Starting Price: $18/month

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ClickSend

ClickSend is a simple, global SMS platform built for developers and the businesses they support. Built on a battle-tested API that always delivers with: - Billions of messages delivered globally - Direct routes only to 190+ countries - 99.95%+ uptime - Lightning-fast delivery - Pay-as-you-go pricing — no lock-ins - 24/7 support from people who actually understand APIs - It works straight out of the box — and keeps working as you scale. Already use Zapier, ActiveCampaign, Make or Power Automate? There are pre-built integrations ready to go. Sign up and send your first message in minutes with free test credits. Perfect for: alerts, 2FA codes, marketing campaigns and transactional messaging.

73 Ratings

Starting Price: $20 minimum topup

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Twilio

Design and deploy your ideal customer engagement experience. Twilio is a single fully-programmable platform with flexible APIs for any channel and over 400+ integrations, backed by a community of over 9 million developers. Build accurate and personalized experiences for your customers, easily and at scale, using SMS and WhatsApp messaging, voice, video, email, and more. Browse documentation and SDKs in multiple coding languages, including Ruby, Python, PHP, Node.js, java, and C#, or jumpstart your first project with our open source code templates to quickly build production-ready communications apps. Sign up and start building today.

13 Ratings

Starting Price: $0.0085 per min

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Zadarma

Powerful Cloud Telephony for Global Businesses Zadarma offers a feature-rich VoIP platform designed for businesses that want flexibility, scalability, and professional communication without high costs. Set up your cloud PBX in minutes, manage international teams, and serve customers worldwide — all from a single interface. Key features: - Virtual phone numbers in 110+ countries - Free cloud PBX with IVR, call routing, and analytics - Integration with CRMs: HubSpot, Zoho, Bitrix24, and more - AI Voice Agent and AI-speech recognition and analytics - Apps for desktop, mobile, and browser-based calling - AI-powered voice agents and call tracking - Full control via web interface and API Ideal for remote teams, support centers, and growing companies looking to modernize their phone systems.

12 Ratings

Starting Price: $2/month

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JivoChat

JivoSite

We're a freemium omnichannel communication platform for businesses with 11 channels to connect and more than 270k active users in all countries all over the world. JivoChat is developed and localized for the English, Spanish, German, Turkish, Indonesian, Portuguese, and Russian markets. We're ready to work in any country also with 24/7 support. Our widget supports more than 20 popular languages and all the operational systems (iOS, Windows and Linux), including the mobile ones. Agents can access all chats, emails and calls from one Jivo app. Do your clients prefer to ask questions and get support via social media? Interacting with your clients via social media can help you increase sales opportunities. Our main focus is to increase sales conversion rate on any communication channel of the online companies. We are integrated with Shopify, Wix, Bigcommerce, Tilda and many other big names in the industry.

11 Ratings

Starting Price: $19/month/user

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EnableX Communications APIs

vCloudx

EnableX makes integrating real-time communications into applications and workflows a lot easier. Designed and developed for Service Providers, Systems Integrators, and Developers, it provides a robust, scalable and secure communications platform without the complexity of building and maintaining the network infrastructure. By simply leveraging on EnableX comprehensive sets of programmable APIs and SDKs, developers can rapidly customize and embed all or part of the communication functions – voice, video, SMS and chat – right into existing applications, workflows and systems. Together with the Virtual Number services and advanced features such as AI and NLP, businesses can reach customers globally with an outstanding communication experience.

6 Ratings

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Arena.im

Arena is a market-leading communication platform designed to help brands create AI-powered communities on their websites and apps. It offers features like live blogs, group chats, AI agents, and content streams to engage audiences in real time. The platform supports industries such as publishers, sports, entertainment, and e-commerce by boosting traffic, engagement, lead generation, and audience monetization. Arena provides powerful customization, advanced analytics, and robust security compliant with GDPR. Its no-code integration makes it easy to add interactive community features to any platform. Trusted by top organizations, Arena helps businesses connect with their audiences and grow online.

5 Ratings

Starting Price: $39/mo (billed anunally)

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VoIPstudio

VoIPstudio is a cloud-based business telephone system created for organizations that require professional communications features without the hassle and expense of owning and managing on-site PBX equipment. With thousands of systems installed worldwide, VoIPstudio is the first choice for companies when selecting a VoIP solution. Its power and simplicity make VoIPstudio perfect for any business, from startups to mid-sized call centers. With VoIPstudio, you get an all-in-one business VoIP solution with no contracts and no hidden costs, available at consumer-level pricing. All our clients get all our features from day one, including a virtual switchboard, virtual numbers, conference calling, call center, call recording, and much more. VoIPstudio also includes advanced communication tools like videoconferencing, screen sharing, or integration with lots of CRMs and other business tools. VoIPstudio is a global company that serves more than 15 million minutes of daily talk time to

1 Rating

Starting Price: $6/month/user

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AVOXI

The effective, affordable, and easy-to-use cloud-based call center software, AVOXI Genius. Easily manage your business communications from an intuitive, web-based contact center. AVOXI Genius is the first platform to integrate your contact center solution with your voice service, with virtual phone numbers available for instant activation in 170+ countries. With plans starting at $19.99 per user, AVOXI Genius is one of the most affordable solutions worldwide! Get 2 months free--limited time only.

1 Rating

Starting Price: $19.99/month/user

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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.

1 Rating

Starting Price: $13.49/user/month

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Smartz Solutions

Smartz Solutions is the disruptor reshaping the contact center landscape. Traditional legacy systems, with their entangled infrastructures and exorbitant fees, have held businesses hostage for too long. Contact centers are tired of being burdened by disjointed systems with hefty price tags and bad customer and employee experiences. We’re redefining the contact centre experience through our AI-powered 360-degree experience platform. We’ve been there. We paid for the legacy systems. We had 15 different systems running (at a snail's pace) at once to be able to run our call centre. We know the pain of not being able to find data quickly enough (sometimes at all) to help customers. And we sure know what it’s like to have employee information in multiple systems; never showing a clear view of the business. Losing money, opportunities and patience doesn’t have to be how you continue to run your call centre. Through a comprehensive tech stack, you will finally have your entire custom

1 Rating

Starting Price: $55.00/month/user

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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.

1 Rating

Starting Price: $27 /month

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VoIP Office

VoIP Office, a leading provider of Cloud based communications, makes it affordable and easy to connect to anyone, anywhere in the world. Our communications solutions meet the needs of any type of business in any industry, from home offices to large enterprises. VOIP OFFICE is a new-generation cloud based communications provider that offers all the features of your traditional PBX along with the latest functionality enabled by the use of VoIP technology. VoIP Office integrates easily with your business applications, seamlessly integrating your desktop and your office into one interconnected system.

1 Rating

Starting Price: $24.95 per month plus taxes

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Yeastar Cloud PBX

Yeastar

Yeastar Cloud PBX 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.

1 Rating

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Innoinstant

Innocrux

Innoinstant offers a customized communication solution for every industry across devices and platforms. Set up a white-labeled communication application scalability, security, and reliability. With customizable APIs and SDKs, ensure real-time communication for every industry and use case. Lag-free virtual classrooms, secure financial transactions, interactive video and text chats on live streams, Gaming, E-Commerce, dating, anything, and everything is possible with 100% customizations. With Industry-standard security, encryption, and signal protocol Secure and protect user communication with end-to-end encryption. Our powerful APIs and SDKs help set up effective communication through chat, voice, and video. Enjoy the benefits of communication with robust payment gateway, file sharing, screen recording, and unlimited calls and translate words to business. The application development is entirely tailor-made to suit every industry needs that works on any platform or device.

1 Rating

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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

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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

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maaiiconnect

M800

maaiiconnect makes customer engagement simple. It is the only cloud-based platform that brings digital and telecom communications together to help businesses deliver seamless customer experiences. Be a truly omnichannel business. Centralise channels such as WhatsApp, WeChat, Facebook Messenger, SMS, Virtual Numbers, Video Conferencing, and a Web Communications Widget for Live Chat and Web Calls into one place with full customer relationship history, customer data, CRM, ticketing system, and rich insights.

Starting Price: Free

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CompletePBX 5 IP PBX

Xorcom

Virtual IP PBX (Private Branch Exchange) or Phone System Appliance – CompletePBX is the heart of Xorcom hardware and software phone systems. Built on top of the solid Linux and Asterisk platforms, it’s built for stability and performance. CompletePBX was designed from the ground up to combine ease of use, advanced features and security at every level. Download free, fully functional CompletePBX 5 VM – evaluation virtual machine now! Check out our FREE online certification training course that will take you step by step through all the basics of CompletePBX system. Save a lot of time and effort by trying to go at it alone. Let us help you get there faster.

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Sylaps Business

Sylaps

Integrate real-time communication into your business using Sylaps with our comprehensive APIs, easy-to-embed website widgets,s and desktop, and mobile SDKs. Sylaps Business enables real-time communication on any device or platform, without needing to install the software. Sylaps is perfect for small or large businesses looking to integrate data, audio, and real-time video streaming. Sylaps provides enterprise-grade security, and full encryption, and is HIPAA compliant. All of our products are competitively priced. Use Sylaps with confidence on any device or platform, including web browsers. Sylaps is perfect for small or large businesses looking to integrate data, audio, and real-time video streaming technology into their products. Our software is highly versatile and works on mobile, desktop, and most web browsers. Our software is designed to improve every aspect of real-time communication in any industry.

Starting Price: $19.90 per month

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Alcatel-Lucent Rainbow

Alcatel-Lucent

Rainbow business communication solutions offer user-friendly collaboration tools from voice to video, that connect people, machines, and processes. Rainbow is an enterprise-grade, cloud communication platform fully developed in Europe with services delivered from secured data centers across the globe. Depending on your needs, Rainbow can be deployed on-premises, hybrid or from the cloud. The open architecture and rich-telephony feature support allow for connecting your existing telephony system and integration of Rainbow into business processes and other SaaS solutions. Does your business need a fully encapsulated environment hosted either on-premises or in a private data center of your choice or do you prefer to go cloud but retain existing investments on-premises and add collaboration on top of your existing telephony system? Whichever you choose Rainbow has got you covered. Create or join audio and video meetings with up to 120 participants and up to 12 simultaneous video streams.

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astTECS

*astTECS

*astTECS provides complete enterprise telecom products based on Open Source Technology- such as IP PBX and Contact Center Solution. *astTECS IP PBX offers all the high-end features at an affordable price enabling your business to be future-ready, flexible, innovative and competitive while reducing your telecom expenses. *astTECS IP PBX can seamlessly integrate with any applications - CRM, ERP, PMS and even with your existing telecom infrastructure. *astTECS call center solution has advanced features with a real-time agent monitoring dashboard helps to improve your agent productivity and customer engagement with advanced analytics. *astTECS also offers a complete call recording solution for your business with real time dashboards.

2 Ratings

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Best Cloud Communication Platform Software for Linux

Compare the Top Cloud Communication Platform Software for Linux as of May 2026

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