Best Communications Software for Linux
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Compare the Top Communications Software for Linux as of September 2026
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What is Communications Software for Linux?
Communications software enables users to exchange information through various digital channels, including messaging, voice, and video. It facilitates real-time and asynchronous interactions across devices and networks, enhancing collaboration and connectivity. Common types include email clients, VoIP applications, video conferencing tools, and instant messaging platforms. Businesses and individuals rely on these solutions for remote work, customer support, and team coordination. Advanced features such as encryption, AI-driven automation, and integration with other software improve security and efficiency. Compare and read user reviews of the best Communications software for Linux currently available using the table below. This list is updated regularly.
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1
OptiSigns
OptiSigns
OptiSigns is all about making it easy for you to connect with your audience. We're top-notch at what we do - providing digital signage that catches people's attention. For just $10/month per screen, use any display to capture your audiences attention! Remotely manage it all from one central portal. Indulge in features, images, videos, playlists, and schedules. Jazz it up with apps like Google Slides, Weather, Instagram, Facebook, Twitter, and more. Oh, and did we mention? We play nice with the most hardware and operating systems in the market like Fire TV Stick, Android, Chrome, Raspberry Pi, Roku, Windows, Linux, and MacOS. Time to unleash your business potential!Starting Price: $10.00/month -
2
Google Workspace
Google
Google Workspace with Gemini integrates premium AI into Gmail, Docs, Drive, Meet, and more, helping businesses work smarter, not harder. Draft emails faster, generate ideas, and summarize documents effortlessly with AI-powered assistance. Manage tasks, schedule meetings, and stay organized across devices with seamless collaboration tools. Whether you're handling client communications, creating content, or running daily operations, Workspace helps businesses stay productive and focused. Workspace provides companies with professional branding (e.g., name@yourcompany), pooled cloud storage, and strict data privacy, ensuring your business data belongs entirely to you and is never used for advertising purposes. Gemini, Google’s most powerful AI, is now seamlessly integrated into the apps you already use. Instead of juggling fragmented apps, Workspace offers a unified, highly productive environment. Save 25% today on any plan (Starter, Standard, or Plus) for your first 3 months by clicking "Save 25%" above!Starting Price: $7/user/month -
3
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 Business, Contact Center and Multi-Tenant Editions, each supporting specific features maximizing performance, reliability, and expandability. -
4
Shape Software
Shape Software
Shape is purpose-built sales and marketing automation software that comes with pre-built features that can be configured for any business. The easy-to-use interface empowers your teams and consolidates all aspects of your business in one AI platform. Shape provides a collaborative space for your teams to stay aligned and efficient in everything they do, whether it's streamlining your sales pipeline, engaging more prospects with marketing sequences and digital ads, nurturing customer relationships, communicating seamlessly, or tracking projects. Start growing your revenue with Shape's suite of services today.Starting Price: $119 -
5
Odoo
Odoo
Odoo is a fully integrated, customizable, open-source software packed with hundreds of expertly designed business applications. Odoo’s intuitive database is able to meet a majority of business needs, such as: CRM, Sales, Project, Manufacturing, Inventory, and Accounting, just to name a few. Odoo is an all-in-one software solution designed to meet the needs of companies, regardless of their size (or budget). The unbeatable, seamless nature of Odoo helps businesses become more efficient by reducing redundant manual processes, which helps companies save countless hours of labor. Every module is interconnected to provide a fully-integrated experience from app to app, and users can automate many processes that would’ve otherwise required manual inputs into multiple applications. Odoo keeps all business functions in one place, allowing teams to collaborate with other departments from one unified platform in the most efficient way possible.Starting Price: $25.00/month/user -
6
EventsAir
EventsAir
EventsAir is a comprehensive, all-in-one event management platform. With over 30 years of expertise, EventsAir has powered 350,000+ successful, complex events, earning the trust of the industry's best to deliver seamless, standout experiences. Our feature-packed, cloud-based platform provides all the tools and technology event planners need to execute engaging in-person, virtual, and hybrid events from start to finish. Flexibility is at the heart of EventsAir's design, ensuring it scales and transforms effortlessly to cater to the diverse needs of events, delivering an experience that's tailor-made for everyone involved. From built-in budgeting and accounting tools to breathtaking on-brand event sites, seamless registration experiences, and even mobile event apps that can be published in minutes, EventsAir truly makes event planning a breath of fresh...air. At EventsAir, we stand as a dedicated technology partner. -
7
Titan
Titan
Build the forms, portals, documents, eSignatures, surveys, and workflows your business needs while keeping Salesforce at the center of it all. Titan brings these experiences into a single Salesforce-first platform, with data connected to Salesforce in real time rather than creating another place for it to live. Give customers, partners, and employees secure ways to interact with Salesforce. Collect and update information through dynamic forms, build branded portals, generate documents from Salesforce data, collect signatures, run surveys, and automate complex business processes. For forms and portals, Titan AI Studio gets you to a strong first version faster. Describe what you need in plain language and Titan creates the structure, fields, styling, and Salesforce mapping. Then refine the details in the visual builder. Titan AI understands your Salesforce data model, including objects, fields, and relationships, without accessing sensitive Salesforce record data. You get AI-assisted speed while staying in control of what gets built and how it works. Experience Studio and Document Studio bring these capabilities together, giving Salesforce teams one platform to build and manage customer-facing experiences, documents, and business processes.Starting Price: $150 per month -
8
Medsender
Medsender
HIPAA compliant secure faxing built exclusively for healthcare. Medsender integrates with dozens of top EMR / EHR systems and provides everything you need out of the box to view, sign, edit, and upload documents to your EMR system. Medsender's optional automation feature can also automatically label incoming faxes and upload them to the corresponding patients' chart in your EMR, saving several hours of manual work each day. You can keep your existing fax numbers and / or get new fax numbers from Medsender. Free trial available, no contracts and no commitments. Medsender integrates instantly with your EMR so your patient records and documents are always up-to-date.Starting Price: $99 per month -
9
Samaaro
Tacnik Technology
Samaaro is an AI-powered event marketing platform that helps marketing teams turn events into a measurable growth channel by planning, promoting, executing, and measuring their business impact. It enables marketing-led teams to manage the full event lifecycle from audience targeting and registration to on-ground engagement, lead capture, CRM synchronization, and post-event measurement with clear visibility into attendance quality, engagement depth, pipeline influence, and ROI. Samaaro is used for hosted marketing events, field marketing programs, and trade show participation, where teams need to connect event activity directly to demand generation, pipeline progression, and revenue outcomes. -
10
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 -
11
VirtualPBX
VirtualPBX
VirtualPBX gives small businesses a complete, high-powered cloud phone system for $15/user/month with every single feature already included. One simple plan. No contracts. No feature gates. Zero surprises. Just smarter voice for your business—whether your team is at a desk, on the road, or working from home. Deploy AI FrontDesk whenever you're ready for intelligent 24/7 call handling, and scale into advanced messaging tools as your business grows. As the pioneers who invented cloud telephony in 1997, we back every account with expert, U.S.-based human support from people who genuinely understand small business. Because having the right technology is important—but having the right team behind it levels the playing field.Starting Price: $18/month -
12
LiveWebinar
RTCLab
LiveWebinar is a cloud-based tool that helps users manage online webinars, meetings, training, live streaming, chats, screen sharing, social media broadcasting and high definition (HD) recording via web browsers. The fully-customizable solution allows users to change logos, room colors, design layouts, as well as to create personalized registration forms to match their business' brand identity, and control email delivery and report designs. LiveWebinar lets users broadcast events, webinars and training on Facebook, YouTube, Vimeo, Periscope, external media sources and other social media platforms. Besides broadcasting, the platform allows screen sharing and remote desktop access across PC, Mac, and Android devices, and provides add-ons for Opera, Chrome and Safari browsers. Users can conduct live webinar tests, surveys and polls to gather information, research reactions, analyze feedback and gain insights for business decisions.Starting Price: $32.00 per month -
13
Communique Conferencing
Communique Conferencing, Inc.
Communique (founded 2001) is an all-in-one webinar, virtual event platform & hybrid event platform that helps organizations host amazing events and conferences. Features include; Personal Agenda, AI Matchmaking, Networking, Content Suggestions, Meeting Scheduling, Breakout Rooms, Briefcase, Text & Video Chat, Gamification with Leaderboard, Webinar Sessions, Q&A, polls, surveys, live day broadcast messages, language translation, social media wall, photo booth and more. -
14
SMTP.com
Ziff Davis
Reliable SMTP relay and email delivery services. Powerful email delivery services that enable you to send and track high volume emails effortlessly. Integrate and start sending in minutes. All your transactional, email relay and email delivery needs under one roof. Whether you need a low-latency email delivery provider for your transactional emails, scalable infrastructure for high-volume sends or reliable backend solution for your marketing campaigns, SMTP is built to deliver. Reputation Defender is SMTP’s proprietary technology that uses big data to proactively monitor your email list health and safeguard your domain and IP reputation among ISPs by suppressing bad emails in your sends from hard and soft bounces. This ensures your delivery rates and inbox placement incrementally gets better over time.Starting Price: $25 per month -
15
Slack
Salesforce
Slack is a work collaboration platform that brings people, apps, data, and AI agents together in one shared workspace. It helps teams communicate through channels, direct messages, huddles, Slack Connect, files, canvases, lists, workflows, and integrations. The platform includes Slackbot, a context-aware AI agent that can summarize conversations, search across messages and files, prepare users for meetings, analyze documents, and help complete tasks without leaving Slack. Slack also supports connected apps such as Salesforce, Google Drive, GitHub, Zoom, Asana, Box, Workday, ChatGPT, and many others. Teams can use Workflow Builder to automate stand-ups, project updates, approvals, notifications, and routine business processes. With enterprise search, AI assistance, secure collaboration, and a large integration ecosystem, Slack helps organizations stay aligned, move faster, and reduce work scattered across disconnected tools.Starting Price: $8.75/user/month -
16
Zoom
Zoom Communications
Enterprise video conferencing with real-time messaging & content sharing with Zoom Meetings & Chat. Simplified video conferencing and messaging across any device. Enable quick adoption with meeting capabilities that make it easy to start, join, and collaborate across any device. Zoom Meetings syncs with your calendar system and delivers streamlined enterprise-grade video conferencing from desktop and mobile. Enable internal and external communications, all-hands meetings, and trainings through one platform. Bring HD video and audio to your meetings with support for up to 1000 video participants and 49 videos on screen. Multiple participants can share their screens simultaneously and co-annotate for a more interactive meeting. End-to-end encryption for all meetings, role-based user security, password protection, waiting rooms, and place attendee on hold. Record your meetings locally or to the cloud, with searchable transcripts. Zoom also offers a HIPAA compliant plan for healthcare.Starting Price: $14.99 per user per month -
17
Pumble
CAKE.com Inc
Pumble is a free team chat app allowing teams to collaborate and cut down on email, centralize communication, and improve productivity. Pumble offers unlimited number of users, unlimited chat history, voice calls and video calls, all for free. Every message will find its recipient quickly through private, direct or public channels, file sharing, or threads and mentions. More options are available in paid plans aimed towards professionals. Your communication hub will help manage non-desk employees, daily operations, communications, and human resource management. Pumble’s paid plan include features like: Screen sharing in video calls Customizable sidebar Guest access Managing user accounts options More file storage - 10GB per team member Pumble is available across platforms (web, Android, iOS, Windows, and Mac). Avoid messy emails, keep your communication organized and improve productivity with Pumble.Starting Price: $0 -
18
Microsoft Teams
Microsoft
Solving today's complex business problems takes teams of engaged people working together. We’ve built an online guide to teach you and your team the secrets of successful teamwork. When you have a place to create and make decisions as a team, there’s no limit to what you can achieve. Teams brings everything together in a shared workspace where you can chat, meet, share files, and work with business apps. Get your team on the same page with group chat, online meetings, calling, and web conferencing. Collaborate on files with built-in Microsoft 365 (formerly Office 365) apps like Word, Excel, PowerPoint, and SharePoint. Add in your favorite Microsoft apps and third-party services to keep the business moving forward. Get end-to-end security, administrative control, and compliance—all powered by Microsoft 365. Teams is designed for groups of all kinds. Get started with the free, no-commitments version. You can also get Teams as part of the best-in-class suite of productivity tools.Starting Price: $12.50 per user per month -
19
webinar.net
webinar.net
Webinar.net launched in 2019, designed to be a modern alternative to the dated Meeting tools that are often used for marketing and training applications, It is a powerful, easy-to-use online presentation platform with polished user interfaces. Webinar.net is the first online presentation platform fully hosted in the cloud. This architecture allows our customers reach to very large audiences without capacity concerns, and enjoy simple, cost-effective pricing. Your brand is fully represented when delivering online presentations via webinar.net, not your technology provider’s. You should expect that users will be able to join presentations from their mobile device or desktop with no app downloads or hassles. Webinar.net provides companies with a simple and cost-effective solution to deliver powerful audio and video presentations to a global audience. With live, simulive, and on-demand broadcasting options, you have the power to control when and how your content is delivered.Starting Price: $500 per month -
20
HubEngage
HubEngage
HubEngage is a state-of-the-art, intelligent employee experience platform for communications and engagement. HubEngage enables companies of all sizes to engage their employees with relevant communications features combined with deep segmentation tools and in-depth analytics. Combined with a multi-channel approach via iOS and Android apps, desktop intranets, emails, and digital displays, companies can reach 100% of their workforce 24/7. Visit us at HubEngage.com and book a demo today! The HubEngage platform allows for companies of all sizes to solve for unique employee engagement needs from communications to recognitions to employee feedback. As an innovative organization, you can empower your employees and help them achieve objectives that are in -line with the mission, vision, and company values. Enrich the lives of your employees so they can contribute a 100% to the company legacy.Starting Price: $5 per month -
21
ClickSend
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.Starting Price: $20 minimum topup -
22
TeamViewer
TeamViewer
TeamViewer is a popular remote access and support software that enables users to connect to and control computers and devices from anywhere in the world. It is widely used for troubleshooting technical issues, managing IT services, and providing customer support. The software allows for secure file sharing, real-time collaboration, and remote desktop access across different platforms, including Windows, macOS, Linux, iOS, and Android. TeamViewer's security features include end-to-end encryption and two-factor authentication, ensuring safe and reliable remote connections. It is used by individuals, IT professionals, and large organizations to enhance productivity, offer remote support, and manage devices efficiently.Starting Price: $24.90 per month -
23
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 -
24
Thirdlane
Thirdlane
Thirdlane is a scalable UCaaS platform that blends multi-tenant PBX, Contact Center, and collaboration apps into one solution. MSPs, Enterprises, and telecom providers adopt Thirdlane when they want freedom of deployment, deep integrations, and reliable control over their communications stack. Whether your team prefers cloud-hosted services or on-premises deployments, Thirdlane adapts to your strategy. IT departments appreciate the API-first design, while business leaders value the ability to cut costs and avoid lock-in. Core benefits: - Enterprise-grade PBX with calling, video meetings, voicemail, and advanced routing. - Unified Thirdlane Connect apps for chat, video meetings, and file sharing. - Built-in Contact Center - Advanced analytics to improve service and sales. - CRM integration for context-rich customer interactions. - White-label branding across all user touchpoints. - Options for geo-redundancy and high availability. -
25
SpamTitan
TitanHQ
SpamTitan email security is an email spam filter for businesses, smbs, MSPs, and schools. SpamTitan email security blocks spam as well as phishing and day-zero attacks, viruses, malware, ransomware, and other email threats. Helps control mail flow, clean it, and protect against unwanted email. We provide easy-to-use yet advanced email security for businesses, smbs and MSPs that are Office365 friendly. SpamTitan - Premium functionality included: • CEO Impersonation protection • Phishing/ Spear phishing protection • Link analysis • Full Sandboxing • Zero Day Attacks protection • Mail Spooling • Spoofing protection • Malware and Ransomware protection • SPF/DKIM/DMARC checking • Encryption • Fully multitenant environment • Ability to rebrand the entire UI • Full REST API: • Comprehensive support and set up docs Try a FREE, fully supported trial of SpamTitan Email Security today.Starting Price: $2.14/user/month -
26
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 -
27
Bitrix24
Bitrix24
Bitrix24 replaces a fragmented app stack with a single workspace combining CRM, project management, and collaboration tools. Trusted by 15 million companies, Bitrix24 brings all business operations into one central hub. The CRM manages lead tracking, automated pipelines, and an omnichannel contact center. For daily teamwork, Bitrix24 provides chats, HD video calls, shared calendars, corporate mail, and document co-editing, alongside Kanban boards and Gantt charts to track project dependencies. CoPilot AI assistant is embedded throughout the platform and serves as a secure assistant that handles routine writing, summarizes long client conversations, creates tasks from notes, and helps teams work faster. A generous free plan supports unlimited users. For growth, flat-rate pricing charges one fixed fee for the entire company, eliminating per-user costs. The mobile app gives remote access, while the self-hosted edition deploys on private servers with open source-code access.Starting Price: $ 49 per month -
28
Callaba Cloud
Callaba Cloud
Callaba provides a professional set of tools for organizing online events within a single platform and API: ultra-low latency live streaming via SRT, WebRTC, video calls, online webinars, multilingual online conferences, paid events via PayPal, events using imported CSV of sold tickets, monetized online concerts with pay-per-view, as well as a comprehensive suite for setting up 24/7 reliable video distribution for internet TV, Radio, and Socials. Virtual events: Broadcasting to thousands of viewers. Video calls & Webinars. Multilingual & ABR player. Pay-per-view via PayPal (Our commission is 0%). Private access for imported CSV tickets. Generation of CSV event tickets for sale. Overlay of advertising banners on videos. Player background and logo customization. No Callaba branding. Video distribution: Multicast video to multiple platforms. Audio track selection. Overlay. Transcoding. Re-streaming from imported files or vMix, OBS, Wirecast, encoders. Adaptive HLSStarting Price: $0.05 per hour -
29
LineUpr
LineUpr
LineUpr is the ultimate platform for creating event apps for on-site, online, or hybrid events that communicate your event and boost attendee engagement. Share your agenda, highlight speakers and sponsors, and gather valuable insights with surveys and live polls. Engage participants and foster connections with chat and networking features. Trusted by over 5,000 customers, from large enterprises to local nonprofit associations, LineUpr offers flexible pricing and features to suit any event. Main Features: - Agenda, Speaker profiles, locations, sponsors and exhibitor presentation - Updates and notifications - Surveys, Q&As and live polls - Networking and chat features - Personalized agendas and session registration options Visit our website to request a demo or try LineUpr today!Starting Price: $119.00/event -
30
Twilio
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.Starting Price: $0.0085 per min
