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Top Rated VoIP Software with Open source - Page 16

Last updated: October 2026

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509 software options

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Voximal logo

A phone platform based on Asterisk propulsed by Voximal

Voximal is Asterisk's VoiceXML engine with state-of-the-art of latest text to speech and speech to text on-premise or online offer.

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Fonvirtual Virtual PBX logo

Private branch exchange (PBX) solution

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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NextPlane logo

Cross-platform collaboration for Teams and Google Workspace

NextPlane OpenHub connects Microsoft Teams and Google Workspace, enabling cross-platform messaging, presence, file sharing, and voice and video communication through users’ existing collaboration applications. It uses native identities and a dedicated single-tenant architecture.

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PortaDialer logo

Branded softphone for VoIP service providers

PortaDialer is a white-label softphone solution for VoIP providers, cloud PBX operators, and communication service providers. It offers native WebRTC apps for iOS, Android, and browser-based calling, enabling calls without software downloads. PortaDialer integrates with SIP infrastructure and PBX systems, supporting HD voice/video calls, call transfer, voicemail, messaging, and push notifications.

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VoIP & Network Quality Manager logo

VoIP monitoring software

SolarWinds VoIP and Network Quality Manager (VNQM) is a VoIP and WAN monitoring software which allows users to identify and troubleshoot call quality issues in real time. The system lets users review quality of service data, including latency, jitter, packet loss, and mean opinion score (MOS).

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DialLink logo

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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PBXware logo

A UCaaS Platform for Telecom Service Providers

The Bicom Platform is a comprehensive, flexible, white label Unified Communications & Collaboration suite. Including UCaaS, Contact Center as a Service, omnichannel, hybrid meetings, mobile UC, geo-redundancy, UC virtualization, and more, the Bicom Platform supports your business as it grows.

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Kolmisoft M4 SBC logo

Telephony and VoIP software

Kolmisoft M4 SBC is a VoIP solution that helps telecommunication service providers automate VoIP billing, routing, and invoicing processes. Key features include real-time billing for both prepaid and postpaid services, multicurrency support, VAT accounting, and comprehensive financial analysis tools.

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