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Free Business Phone Systems Software

Last updated: April 2026

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18 software options

3CX logo

3CX

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

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3CX is a Business Phone System offering telephony, video & live chat, in one easy-to-use integrated solution. Suitable for any business size or industry, 3CX is open-standards supporting a variety of IP phones & SIP trunk providers. Ideal for remote working, with free mobile apps for iOS & Android.

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55PBX logo

Virtual PBX solution to boost your team's productivity

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55PBX is a Brazilian based Business Communications Platforms with Voip, Whatsapp, SMS and integrations with Support, Sales, Ecommerce that facilitates your team's communication with their customers.

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iPlum logo

VoIP app for calls, secure text & phone tree communication

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iPlum is used by busineses in healthcare, financial, sales, customer service, real estate, hospitality and more.
The iPlum provides calls, secure text & phone tree communication. We solve the privacy problem of professionals doing business calling & texting with their smartphone.

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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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Broadcaster Mobile logo

Connect the world with your company.

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Broadcaster Mobile is a cloud-based customer communication management solution that helps streamline communication with customers via mass and personalized SMS, RCS, email, and voice messages. The platform also has the option to send mass messages through different communication channels, allowing businesses to reach a large number of customers quickly and efficiently.

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Callture logo

Virtual PBX software for small to medium businesses

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Virtual PBX system turns your phone into an office phone system with multiple extensions and personalized voicemail. You can record customized greeting, have an operator extension and access to online management center. You will never install any hardware or have to deal with complicated software.

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Zoom Phone logo

Cloud-based business phone system

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Zoom Phone is a cloud VoIP phone software designed for businesses of all sizes. With a streamlined administration interface and secure voice calls, Zoom Phone offers a flexible solution for remote workforces. It also features global coverage, virtual phone numbers, fixed VoIP, cloud PBX, multi-line phone systems, and a Zoom Phone API, among other functionalities.

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Distrobird logo

All-in-one sales management platform

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All the tools your revenue team needs on a single platform, such as lead capture, prospecting, multi-channel engagement, calls, reporting, and more, for free. Double your sales team's output with fewer tools.

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Asterisk logo

Open-source modular communication system

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Asterisk is an open-source framework that helps to build communication applications and is used by small, midsize and large companies and governments worldwide

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Twilio logo

Build, Scale, and Operate Customized Communication Solutions

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Twilio offers an API for phone services enabling companies to make and receive phone calls and send and receive text messages. It allows programmers to integrate various communication methods and to use existing web development skills and codes to solve communication problems.

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Bitrix24 logo

All in one business management workspace

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Bitrix24 is a cloud PBX business phone system, 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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Ring4 logo

Second phone number app for texting and calling

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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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Zoho Voice logo

Cloud-based business phone for SMB sales and support teams

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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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Kloudtalk logo

Robust and Feature-Packed Cloud-based Business Phone System

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KloudTalk is a cloud-based business phone system that offers useful communication and collaboration tools for for small, mid-sized, and large businesses.

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Soho66 logo

VoIP solution for managing communication

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Soho 66 is an award winning cloud-based VoIP solution. With a multitude of features and benefits, this system is perfect for remote working, giving users the flexibility and security they need to operate from any location.

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Freshcaller logo

Modern Phone System for customer support & sales

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Freshcaller is a business phone system for businesses of all sizes - from SMB to Enterprise. Freshcaller's cloud-based architecture brings features like IVR, Smart Escalations, Agent Extensions, and Customizable Performance Reporting to set up business telephony operations.

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Orbox logo

Creating positive experiences through enhanced communication

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Orboxis a fully customizable IP-PBX solution, designed for any type of company that intends to manage their communications.

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Nvoip logo
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Connecting businesses and customers.

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Nvoip is a communication platform that helps businesses communicate better with their customers.

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