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Top Rated Cloud PBX Software with Free - Page 2

Last updated: October 2026

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31 software options

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

Cloud & on-premises workspace for all business sizes

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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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Vonage Business Communications logo

Cloud-based business VoIP phone service

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Vonage Business provides a cloud-hosted business VoIP phone system, with customizable feature sets for the differing needs of small and medium businesses

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Zentrunk logo

Cloud-based SIP trunking solution for firms of all sizes

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Zentrunk is a cloud-based session initiation protocol (SIP) trunking solution designed to help businesses of all sizes setup voice over internet protocol (VoIP) based business communication system. The platform also offers prepackaged templates which enable users to integrate SMS functionality.

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ICTPBX logo

Self-hosted multi-tenant PBX for VoIP providers

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Cloud PBX software you host yourself. ICTPBX runs on FreeSWITCH and gives each tenant its own isolated PBX with extensions, IVR, queues, voicemail, a browser softphone and fax over IP. White-label per tenant, any SIP carrier, no per-user fees. Free open source edition on GitHub.

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Nvoip  logo

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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