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Unified Communications Software for Linux

Last updated: February 2026

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84 software options

Ultatel Cloud Business Phone System logo

Ultatel Cloud Business Phone System

ULTATEL | Phone and Teleommunication Solutions For Business

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ULTATEL is a leading and innovating provider of cloud-based telecommunications. We help your business unify voice, chat, and video in a single user-friendly platform.

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3CX logo

3CX

Web & mobile-based (Android, iOS) communications system.

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3CX is an open standards IP PBX that offers complete Unified Communications, out of the box. Suitable for any business size or industry. Work efficiently from anywhere. Video conferencing, live chat, mobile apps and advanced contact center features are all included at a fraction of the cost.

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Trillian logo

Trillian

Modern and secure messaging for business and healthcare

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Trillian is a cloud-based solution designed to help businesses in the healthcare sector manage processes for instant messaging to improve internal communication. Trillian lets users manage group chats, sorted by teams or department, & share information about patient status, staff rotations, & more.

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Zoom Workplace logo

Zoom is an all-in-one collaboration platform

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With Team Chat, Phone, AI Companion, and more, Zoom Workplace is the platform for your best work. With Zoom Workplace, you can share your calendar availability, connect with your team, access your work phone on any device, and more.

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GoTo Meeting logo

Online meeting software with HD video conferencing

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Get a fast, easy and reliable professional solution that enables customers to connect with colleagues through in-meeting chat or conference calling, and screenshare their presentations, all with the click of a button. The Meeting solution from GoTo Connect pairs productivity with flexibility.

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Webex Suite logo

One app for everything. And everyone.

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Webex brings together Calling, Meeting and Messaging modes of collaboration into a seamless, engaging, inclusive and intelligent experience.

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LiveAgent logo

Multichannel customer care solution with an AI chatbot

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LiveAgent is a web-based help desk solution which enables the management of support tickets from multiple channels, including phone, live chat, and social media.

Start with a 30-Day free trial, no credit card needed, no contracts.

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Lime Connect logo

Live chat and customer messaging for businesses of all sizes

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Lime Connect is the leading GDPR-compliant software for messaging & automation that helps businesses transform customer communication.

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RingEX logo

RingEX - AI meets trusted communications

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Designed to give you a flexible, mobile, and powerful cloud phone system. Experience HD-quality web, audio, and video, along with one-click functionality and webinar capabilities with RingCentral Video. Promote collaboration with team messaging, unlimited SMS, and more.

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Livestorm logo
Category Leaders

Engage your audience with better video communication

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Livestorm enables powerful, yet pain-free video engagements at scale. Our end-to-end video engagement platform requires no downloads, facilitates easy collaboration while capturing actionable insights—all in one place.

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Bitrix24 logo

Your ultimate workspace

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Bitrix24 #1 FREE unified communications platform used by 12 million companies.

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Kixie PowerCall logo

More Connections, Better Conversations. AI-enhanced RevComms

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Kixie is a cutting-edge revenue communications platform designed to supercharge your team’s calling and texting capabilities. Kixie leverages AI and automation to streamline outreach, maximize efficiency, and drive real revenue growth — all while keeping the human element in every conversation.

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Telnyx Suite logo

All-in-one communications platform & API

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Telnyx is an all-in-one communications platform which delivers voice, messaging & IP services for applications & communications companies. Telnyx enables users to integrate, manage & analyze all of their voice & messaging needs with features like elastic SIP trunking, programmable SMS, & more

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Wildix logo

The First Sales-Oriented Unified Communications Solution.

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Wildix is a global provider of unified communications solutions for simpler, more secure business communications in the digital age.

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Ooma Office logo
Category Leaders

All-in-one VoIP solution for businesses of all sizes.

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Ooma Office is a simple to use, cloud-based voice + video solution. With a platform designed to enable your team to advance collaboration and productivity, Ooma Office gives you the ultimate flexibility to work from anywhere with video meetings, desktop, and mobile apps.

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Acefone logo
Category Leaders

VoIP Phone Service trusted by modern businesses

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No matter your business communication requirement, Acefone has you covered. We support unlimited calling and provide bespoke cloud telephony solutions with powerful integrations—these are used by organizations of all sizes to simplify their team collaboration. Start your 14-day FREE trial today.

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Blink logo
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Blink. And connect your people, tools and culture.

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Blink delivers a modern, social digital employee experience, giving access to communication, information, workflows, surveys and tools in one easy-to-use app.

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Tuvis logo

Your messages always secure.

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Tuvis protects business communications with real-time monitoring, encryption, and automated archiving, ensuring compliance, preventing data loss, and maintaining security across all channels.

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Mattermost logo

Open source workplace messaging for web, PCs & phones

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Mattermost is an open source workplace messaging system for web, PCs & phones, that supports 1-1 & group messaging, file sharing, multiple languages, & more

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ZIWO logo

API Based cloud contact center software with CRM Integration

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ZIWO is a cloud call center software for sales, marketing, customer support for real or virtual agents. Features include CRM integration, outbound dialer, virtual phone , call tracking, call masking , Agent and Admin Mobile App along with live monitoring of Inbound & Outbound KPI such as IVR, FCR.

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MangoApps logo
Category Leaders

Bring your frontline and office teams together

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MangoApps is a unified communications platform that serves as a bridge between desk and deskless workers.

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Zoho Cliq logo

Cloud-based software for team collaboration & communication

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Zoho Cliq is a secure team communication software that organizes conversations, workflows, and meetings in one place to boost productivity. With features like video conferencing, custom messaging channels, and seamless integrations, Zoho Cliq enables effective collaboration from anywhere, streamlining workflows for teams of all sizes.

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11Sight logo
Category Leaders

The shortest path to revenue.

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#1 Inbound Video Call Platform for Revenue Teams.

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Rocket.Chat logo

The Leading Enterprise Communication Hub

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Move away from messy email threads and multiple chatting platforms. Improve your digital workstream with a platform that respects privacy and offers total control of your data, bringing messages, video conference, files and bots together. Never lose track of important information again.

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Dialshree logo
Category Leaders

Cloud-based contact center solution

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DialShree is a cloud-based software designed to help businesses manage customer interactions. It can be deployed on any web server or cloud platform and can be used to manage interactions across multiple channels.

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