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Top Rated VoIP Software with Open source - Page 11

Last updated: October 2026

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509 software options

Zoho Voice logo

Cloud-based business phone for SMB sales and support teams

Zoho Voice is an online business telephony and contact center solution for businesses of all sizes. Packed with powerful features to seamlessly connect with your colleagues and customers, Zoho Voice helps you redefine your customer experience more efficiently with faster business communications.

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Pascom Cloud logo

We upgrade business communications

Upgrade your business communications with the pascom cloud phone system.

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Bird logo

Enterprise cloud communications platform

Build fast, reliable and secure Voice applications for your business with MessageBird's powerful VoIP infrastructure.

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Zultys MX System logo

Read more about Zultys MX System

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CloudCall logo

Advanced, cloud-based computer telephony integration

CloudCall powers smarter conversations for CRM-driven teams in staffing and recruiting, professional services, customer service, call center, and more -- across the globe.

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Signpost logo

Cloud-based lead & comms platform for home services

Signpost is a cloud-based customer communication and lead management platform for small home service businesses, combining AI.

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Webex Suite logo

Cloud-based unified collaboration suite for enterprises

Webex Suite is a cloud-based collaboration platform consolidating meetings, messaging, calling, polling, webinars, events, and video.

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Ooma Office logo

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

Ooma Office is an award-winning and affordable business VoIP solution for any size business. Pricing starts at $19.95/user/month and there are no contracts. We offer two service plans, designed to suit a variety of business needs.

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Jitsi logo

Open-source video conferencing platform

Jitsi Meet is an open-source video conferencing software that helps businesses create password-protected virtual meeting rooms to host audio and video calls. Administrators can create custom meeting URLs, mute or remove participants, and share the entire screen or specific applications.

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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.

Get calls, texts, and voicemails delivered over the internet with full team visibility. Shared lines, smart routing, and AI call summaries make it easy to run your business communications.

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ClickDesk logo

Live chat for customer support

ClickDesk is a live support solution for customer service teams which combines live chat, voice chat, help desk & a social toolbar for website customer communications. Support agents can answer queries, transfer tickets, respond to social media posts, & collaborate with one another using ClickDesk.

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Mikogo logo

Show any screen content from your computer over the Web

Mikogo is an easy-to-use free screen sharing solution that provides a fast and secure solution for web conferencing, online meetings, remote support, webinars, sales calls, web presentations, and more.

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Zadarma logo

Business phone system for companies of all sizes

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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Line2 Pro logo

Cloud-based communication platform for small businesses

Line2 is a cloud-based communication platform that enables small businesses to communicate with customers via calls and texts using a virtual phone system. Professionals can utilize the platform to set up different phone lines for team members, facilitating quick client response.

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RingCX logo

AI-powered contact center

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

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Genesys Cloud CX logo

Cloud CCaaS platform for global enterprises

Genesys Cloud CX is a cloud-native CCaaS platform unifying omnichannel engagement, workforce management, and AI-powered journey.

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Sideline logo

Your Phone’s Other Number.

Sideline puts a reliable 2nd number on the phone you already have.

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MiVoice Business logo

AI-powered communications solutions for all industries

MiVoice Business delivers a full communications solution with business phone features, chat and video messaging, audio and video conferencing, collaboration, and AI-integrated contact center capabilities that enables faster and more effective communications.

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Five9 logo

Cloud contact and call center software

Five9 allows you to make the move to a VoIP call center on your terms with our VoIP phone service, using either a VoIP gateway or the built-in Agent Softphone based on SIP (Session-Initiation Protocol, the leading standard for VoIP communications).

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MightyCall logo

MightyCall's Call Center solution for your business.

MightyCall is one of the best options on the market for Business VoIP. If your business needs modern tools to streamline customer communications without breaking the bank, MightyCall is the way to go.

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Grasshopper logo

Turn the World Into Your Office

Turn the world into your office with Grasshopper, the entrepreneur’s phone system. With a toll free or local number and features like unlimited extensions, professional greetings, voicemail via email and a dial by name directory. Prices as low as $14/month.

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Podium logo

Cloud-based AI platform for local business growth

Cloud-based AI platform for local and SMB businesses unifying text, phone, email, social, reviews, and payments in a single inbox.

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RingEX logo

RingEX - AI meets trusted communications

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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Bitrix24 logo

Cloud & on-premises workspace for all business sizes

Bitrix24 is a #1 business VoIP system used by over 12 million businesses worldwide. Cloud, mobile and open source versions available.

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Mango Voice logo

Making Communication Simple

Mango is a simple yet powerful VoIP, cloud based, phone system software. Combine that with a mobile app, world class software integrations, competitive pricing, good old fashioned U.S. based customer service, and you've got the best VoIP phone software solution your office could have.

Read more about Mango Voice

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