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Top Rated Cloud PBX Software with Linux

Last updated: July 2026

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18 software options

3CX logo

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

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

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Ultatel Cloud Business Phone System logo

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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Dialshree logo

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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NUACOM logo

All-in-one Cloud Phone System for SMBs

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NUACOM offers an all-in-one Cloud phone system for SMBs that need a modern, fully scalable business communication solution. The platform offers over 50 business-class features to help boost productivity, connect departments, and centralize telephony for all locations.

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EasyPBX logo

Cloud-based phone system

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EasyPBX is a cloud VoIP that integrates voice, video, messaging, and call management. Features include unlimited US and 40+ countries calling, Yealink phones, conferencing, and 24/7 support, all in one solution.

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Callbox logo

UCaaS, Cloud PBX, Contact Center, Omnichannel

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Callbox is a cloud PBX for collaboration and contact center integrated with MS Teams and Google Workspace, CRMs, and ERPs.

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PBXPlus logo

Virtual PBX business phone system for growing businesses

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Increase your business productivity with PBXPlus virtual PBX software by adding unlimited extensions, call forwarding, setting business hours, integrating with your CRM and many more features.

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TELIQON logo

Global Cloud Communications Platform for Growing Businesses

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Teliqon is a cloud communications platform that combines Cloud PBX, virtual numbers, SIP trunking, business SMS, OTP messaging, auto dialers, contact center tools, and communication APIs in a single scalable solution.

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metricVOICE logo

Cloud Hosted Voice & UCaaS - metricVOICE by Fastmetrics

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metricVOICE by Fastmetrics - cloud hosted phones, VoIP & UCaaS. Backed by LIVE USA SUPPORT.

Connect how you work, where you work. The ESSENTIALS plan starts from $15 per month.

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ITC Cloud logo

Business Communication. Simplified.

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Step into the future with ITC Cloud! Say goodbye to communication complexities. Collaborate effortlessly from anywhere on any device. Our 24/7 help desk ensures your business success. We're committed to exceeding your expectations. Trust ITC Cloud to take your communication to new heights!

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Ubefone logo

La téléphonie cloud d'entreprise, simple et sans engagement.

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Ubefone est un opérateur de téléphonie cloud, VoIP et mobile pour entreprises, déclaré ARCEP depuis 2014. Standard téléphonique virtuel, appels illimités, sans engagement, données hébergées en France.

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Intalk.io logo

Break All Communication Barriers with intalk.io

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Modern Cloud Contact Center with multichannel capabilities with Inbound, Outbound, IVR, and Chat modes

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Bitrix24 logo

All in one business management workspace

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Bitrix24 is a cloud PBX, call center and CRM in one! Trusted by 12 million businesses it's available in cloud and on-premises. Inbound, outbound, SMS, multilevel IVR, call routing and more.

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TeamsPhony logo
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Migrate your business telephony to Teams

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TeamsPhony is an enterprise VoIP telephony solution, directly integrated into Teams.

You can handle all your business calls with your Microsoft Teams application.

Our infrastructure is certified by Microsoft to guarantee optimal service quality and reliability.

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PBXware logo
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A UCaaS Platform for Telecom Service Providers

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The Bicom Platform is a comprehensive, flexible, white label Unified Communications & Collaboration suite. Including UCaaS, Contact Center as a Service, omnichannel, hybrid meetings, mobile UC, geo-redundancy, UC virtualization, and more, the Bicom Platform supports your business as it grows.

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Digital Tide logo
(0)

White-label cloud PBX for telecom operators

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White-label Cloud PBX and CPaaS platform enabling telecom operators to launch B2B cloud communications with zero CAPEX.

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AI IP PBX logo
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Boosting business talk with AI innovation.

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astTECS IP PBX is an open-source asterisk platform with all high-end features that make your business easy and efficient. It brings you powerful and cutting-edge AI-Powered PBX solutions, designed to revolutionize your business communication infrastructure.

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SanIPPBX logo
(0)

IP PBX system

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SAN Softwares' San-IPPBX connects multi-branched offices over the internet, while offering features like Live Call Monitoring, CDR Dashboard.

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