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Top Rated Cloud PBX Software with Slack

Last updated: July 2026

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22 software options

Ringover logo

100% cloud phone for startups and SMEs

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Ringover is a 100% Cloud voice - video - chat - text and call center solution focused on team productivity and directly configurable by managers. The key: end-to-end technological control, a user-friendly interface, and support at each step.

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LiveAgent logo

Multichannel Help Desk Solution with Powerful AI Features

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LiveAgent is a cloud-based, full-service call center system, allowing you to communicate with customers across multiple channels. Features like call centralization, VoIP, and SIP trunks help improve your customer relations and increase sales.

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

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Spoke Phone logo

Great customer conversations anywhere, on any device.

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Spoke Phone is the leading platform for high-value, complex, and regulated conversations. Spoke guides employees to say and collect the right things so deals move forward and customers get better experiences. Compliant calls, SMS, and WhatsApp conversations on mobile phones and desktops devices.

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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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Voxloud logo

Get your cloud phone system in just 59 seconds.

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Get in your pocket a large company’s phone system! Download the Voxloud app for mobile and you will no longer miss any calls and make your customer service so efficient!

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VirtualPBX logo

One simple plan. Everything included.

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VirtualPBX is radically simple: one plan, no contracts, at just $15/user/mo, plus real U.S.-based expert support—not a runaround.

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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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JivoChat logo

Live chat with agent apps for iOS & Android

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JivoChat is a live chat software that offers customizable web & mobile chat widgets with 20 language options, and web-based, desktop, and mobile agent apps, including real-time visitor monitoring, pageview histories, email chat transcripts, file transfers, canned responses, customer ratings, & more

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Yay logo

Powerful business cloud phone system for easy collaboration

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Yay is a cloud-based phone system that combines business messaging, HD VoIP, and a host of call features. It offers instant setup and friendly support.

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Placetel logo

All-in-one - cloud calling, team messaging & online meetings

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Placetel + Webex combines business telephony software from the cloud with the full Webex suite. Benefit from over 150 telephone system features paired with video conferences in HD, file and screen sharing, call control, instant messaging, call center functions and unified communication.

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CircleLoop logo

Cloud based business telephony system

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CircleLoop is a cloud-based,self-serviced business telephony software system with native desktop, and mobile apps, boasting features including UK and international number support, personalized voicemail, call transfer, call recording, SMS integration, smart notifications, contact management and more

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CloudTalk logo

Cloud-based call center software for sales and support teams

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CloudTalk is a cloud PBX system built for modern companies. Make things easier for your sales and customer support teams with 70+ advanced features and easy-to-setup integrations with your existing business software. It’s the perfect phone system for scaling companies. Try a FREE 14-day trial.

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GoTo Connect logo

The first-ever truly unified voice and video solution.

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GoToConnect combines the power and reliability of Jive's cloud VoIP phone systems with GoToMeeting's web, audio and video conferencing into one simple, reliable and flexible solution. Users can meet, talk, chat, text and collaborate seamlessly via web browser, desktop application, or desk phone.

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Ring4 logo

Second phone number app for texting and calling

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Ring4 provides companies and individuals with a lightweight Cloud PBX solution to manage phone lines as simply as they manage emails. The Ring4 smart numbers work on any iOS or Android device and can be managed via the Admin Console.

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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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Yodel logo

Business phone system for streamlining customer service

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Yodel is a cloud-based business phone system designed to help teams manage inbound and outbound calls via Slack using existing phone numbers. It lets customer service representatives view which members are on active calls, and join conference calls to facilitate communication across organizations.

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net2phone logo

Cloud-based PBX and business communication management tool

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net2phone is a cloud-based PBX software that provides businesses with tools to manage and improve customer interactions across various channels. Supervisors can use the dashboard to track the extension numbers of team members, access details about their devices, and configure call routing flows according to requirements.

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Zadarma logo

Business phone system for companies of all sizes

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Zadarma offers a new generation of business phone system with virtual numbers from 110 countries, free Cloud PBX, free CRM and widgets.

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RingCX logo

AI-powered contact center

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RingCentral RingCX: AI-powered, omnichannel contact center with unified communications. Simplify customer experiences effortlessly.

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8x8 Work logo

Integrated contact center, voice, chat, video, and APIs

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8x8 Work: Your all-in-one collaboration hub - phone, video, messaging. Secure unified communication for every employee, anywhere, any device.

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JustCall logo

AI-Powered Business Communication for Sales & Support Teams

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Never miss a lead or customer call with JustCall's AI-powered communication platform. Voice, SMS, email & WhatsApp in one place.

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Fonvirtual Virtual PBX logo
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Private branch exchange (PBX) solution

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Fonvirtual virtual PBX is a business telephone system that helps companies manage internal and external voice, video, or chat- based communications. The platform allows users to create custom greeting messages to automatically redirect clients to the right agent based on specific requirements.

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