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Top Rated Business Phone Systems Software with Slack

Last updated: September 2026

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19 software options

CloudTalk logo

Cloud-based call center software for sales and support teams

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CloudTalk is a VoIP phone system built for modern businesses. 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 mid-sized businesses. Try a FREE 14-day trial.

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Dialpad logo

The AI-native platform where conversations become action.

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Dialpad's Business Phone System unifies calls, messaging, and meetings in one AI-native platform. Agentic AI reasons through conversations in real time, adding context and intelligence instead of just routing calls, all governed by Dialpad's Guardian layer for secure, enterprise-grade operations.

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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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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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smrtPhone logo

Make more calls, send more texts, close more deals

smrtPhone is an Agentic Conversation Platform. People and AI share the work. Conversations carry forward.

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Spoke Phone logo

Great customer conversations anywhere, on any device.

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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NUACOM logo

All-in-one Cloud Phone System for SMBs

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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Placetel logo

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

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

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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GoTo Connect logo

The first-ever truly unified voice and video solution.

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

Ring4 provides companies and individuals with a lightweight Business Phone 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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8x8 Contact Center logo

One solution for every customer interaction.

8x8 Contact Center is a complete, reliable and secure solution that helps businesses boost engagement, collaboration, and operational effectiveness for customer success.

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Yodel logo

Business phone system for streamlining customer service

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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Toky logo

Virtual phone system for business sales and customer support

Virtual phone system that allows you to add call center features to your business including phone numbers, call recordings, CRM integrations, SMS, IVR and more

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Zadarma logo

Business phone system for companies of all sizes

A new generation of VoIP for your business, offering virtual phone numbers, cloud PBX and much more. Save up to 90% on phone bills!

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Quo logo

The collaborative phone system trusted by 90k+ teams

Quo is the collaborative phone system trusted by teams at over 90,000 businesses.

It brings your customer calls, texts, and contacts into an intuitive, AI-powered app that works across all your devices. Built for teams who never want to miss a call.

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net2phone logo

Cloud-based PBX and business communication management tool

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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8x8 Work logo

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

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

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DialLink logo
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The Best Phone System for Small Businesses

DialLink provides SMBs and startups with a business phone system that combines AI voice agents, advanced call handling, and business messaging to automate routine interactions and project a professional image, without the cost or complexity of enterprise tools.

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