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Top Rated VoIP Software with One time license

Last updated: October 2026

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17 software options

Calabrio ONE logo

Comprehensive performance software for contact centers

Calabrio ONE is now Verint. The workforce engagement and contact center intelligence capabilities you knew as Calabrio ONE are now offered through Verint CX Automation Platform – with expanded AI capabilities, deeper integrations, and the same focus on agent experience and customer outcomes.

Read more about Calabrio ONE

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Tragofone logo

Cloud Based White Label VoIP Softphone App

Tragofone is a WebRTC powered white label softphone for businesses that brings secure VoIP and SIP calling, messaging, and video to Android, iOS, Windows, Linux, and Mac devices. Deploy fast with auto-provisioning and multi-tenancy, brand the app end-to-end, and manage users from one dashboard.

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VSLogger logo

Call recording solution for businesses of all sizes

VSLogger by Versadial is a cloud-based call recording solution which helps companies record calls to improve employee coaching, compliance & liability protection. The platform can be integrated with business telephone systems and computers, and all call recordings can be accessed via a web browser.

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CM.com Communications Platform logo

One platform to reach your audience via all mobile channels

Make, receive and automate your business calls. Reduce costs and improve efficiency with our VoIP solutions. Get insights into detailed information about each call. Easily extend your customer communications with text messaging through all mobile channels via the single platform.

Read more about CM.com Communications Platform

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Infobip logo

Omni-channel customer communication and engagement

Infobip is an omni-channel communications platform for customer support and engagement, which uses SMS, voice messages, email, and mobile app messaging. Features of the platform include customer profiling, custom payload tools, geolocation, chatbots, AI, event triggered actions, and more.

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Kiamo logo

Centralized & Aumented Customer Relationship

Kiamo is a Cloud omnichannel solution for Contact centers

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SalesCaptain logo

AI-powered front desk for phone and text.

SalesCaptain is an AI-enable customer communication platform designed for local businesses seeking to streamline customer interactions. The system offers realistic AI phone and chat agents that handle tasks such as appointment reminders, lead qualification, and after-hours support. SalesCaptain integrates with numerous business tools while providing unified communication features that help businesses improve customer retention.

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Africa's Talking Voice logo

VoIP tool for communicating and interacting with clients

Africa's Talking Voice helps businesses communicate, engage, and interact with clients using API and resources. Build a better solution and customize it to meet your needs and give your business a wider voice.

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Bandwidth logo

Coding APIs for adding telephony, SMS & 911 calling to apps

Bandwidth offers a suite of API products for businesses and developers wanting to add voice calling, secured 2FA text messaging (SMS), MMS or 9-1-1 emergency call connectivity to software and applications, while also accessing SIP trunking, routing, address verification and number porting services

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Zoiper logo

Cross-platform VoIP softphone dialer for SIP and IAX systems

Zoiper is a cross-platform VoIP softphone dialer that allows voice and video calls, plus instant messaging, to be conducted through multiple Private Branch Exchnage (PBX) networks or favoured Session Initiation Protocol (SIP) providers, with smartphone apps also available for iOS and Android devices

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TextFree logo

Free texting and SMS marketing application

Text Free is the original free texting app with a long legacy of making communication free and accessible to all.

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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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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).

Read more about SolarWinds VoIP & Network Quality Manager

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ICTPBX logo

Self-hosted multi-tenant PBX for VoIP providers

ICTPBX is multi-tenant IP PBX software you run on your own Linux server. Built on FreeSWITCH with an ICTCore REST API, it gives VoIP providers and resellers white-label tenants, IVR, call queues, voicemail, a WebRTC softphone and fax over IP, with no per-user licence fees.

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Fonable logo

Browser based international calling service

Fonable is a browser-based international calling service that enables users to make phone calls to landlines and mobile phones across more than one hundred eighty countries. The platform operates directly through web browsers without requiring app downloads, plugins, or extensions. It features a pay-per-minute credit system and supports calls to businesses, customer service desks, and personal numbers worldwide.

Read more about Fonable

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DPL Professional logo

Professional Decision & Risk Analysis

DPL Professional offers the most comprehensive set decision and risk analytic tools in the space:

-a unique, graphical Influence Diagram/Decision Tree modeling interface
-a swift and reliable analytic decision tree engine
-a full suite of insightful results
-extensive support for Excel linking

Read more about DPL Professional

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Bitcall logo

Global communication hub and telephony software

Bitcall provides an all-in-one telecommunications platform featuring international calling services and global 5G eSIM coverage across countries. The system offers direct-edge connectivity with high-tier networks that ensure voice quality and reliable uptime. Users can access virtual phone numbers, configure SIP trunks, and manage their telecom infrastructure through a self-managed dashboard with analytics capabilities.

Read more about Bitcall

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