Best Business VoIP Providers for Linux

net2phone is an AI-powered business communication platform for companies serious about customer experience. Trusted by 500,000+ users and backed by 30+ years of experience, net2phone eliminates the friction of scattered channels and disconnected tools, so every conversation drives retention and growth. Unite unifies voice, messaging, video, and chat in one place, with call recording, sentiment analysis, and AI-generated follow-ups. AI Agent automates customer inquiries and workflows across phone and chat in 30+ languages, handing off to humans when needed. Coach AI reviews 100% of interactions to guide agent performance. uContact gives high-volume teams omnichannel routing and real-time dashboards. Every solution integrates with the tools you already use and runs on enterprise-grade security. Beyond software, net2phone provides expert guidance at every step, from setup to integration to ongoing optimization, so your technology delivers measurable results.

KrispCall is an AI-Powered Communication Platform for Growing Business that helps you manage your personal, business, and corporate telephony requirements all from a single app (Web, Android, iOS). Get international numbers right from the comfort of your home. KrispCall helps you own national, toll-free, local, shortcode, and international numbers (for over 100 countries) in no time. Manage your call logs effortlessly. KrispCall’s unified callbox allows you to handle and monitor your business calls, recorded conversations, texts, and voicemails all from a single window. Earn trust of your international clients by calling them through their local numbers. KrispCall offers international phone numbers for your business at the most affordable price. With our embeddable widget, you are just a click away from your customers. Clients can now call you directly without hassles by simply clicking on the KrispCall’s widget embedded in your website.

Thirdlane is a scalable UCaaS platform that blends multi-tenant PBX, Contact Center, and collaboration apps into one solution. MSPs, Enterprises, and telecom providers adopt Thirdlane when they want freedom of deployment, deep integrations, and reliable control over their communications stack. Whether your team prefers cloud-hosted services or on-premises deployments, Thirdlane adapts to your strategy. IT departments appreciate the API-first design, while business leaders value the ability to cut costs and avoid lock-in. Core benefits: - Enterprise-grade PBX with calling, video meetings, voicemail, and advanced routing. - Unified Thirdlane Connect apps for chat, video meetings, and file sharing. - Built-in Contact Center - Advanced analytics to improve service and sales. - CRM integration for context-rich customer interactions. - White-label branding across all user touchpoints. - Options for geo-redundancy and high availability.

Lowest priced phone and text service for your small and homebusiness. Why spend a bunch on phone solution for your business? A phone system made simple for everyone. TeliDesk is a self-serve platform that can be configured in as little as 15 minutes. Avoid hassling with phone systems that are complicated and take long to configure. Owning your own business means you’re in control, and your phone service is no exception. Virtual Office enables you to design your own telecom solution based on just what you need, nothing more and nothing less. Online Self-Service means you can easily make changes, anytime or anywhere. Just log in, and go! The more you call, the more you save. As your business grows, so does your discount. Automatic payments via credit card, debit card or PayPal. Prefer to pay cash? No problem. With no equipment to buy or install, our unique Virtual Office enables you to decide where calls ring. Our easy-to-use online interface lets you send calls to any existing phone

Hosted VoIP solution with a European focus and a local presence in over a 165 countries. As all our solutions are based on Premium Plus we give you the highest possible quality for the lowest price. All carry all types of numbers, from Geographic to National, TollFree and UIFN, Mobile VoIP, Elastic Pool solutions and much more. We also have our own Roaming products (physical and SIM solutions) too.

AI-powered phone system with built-in contact center, predictive dialers global numbers – loved by retail & e-commerce teams. The modern cloud phone system built for retail, e-commerce, and growing teams. Get unlimited calling, local/toll-free numbers in 90+ countries, AI receptionist (24/7 auto-answer & lead qualification), predictive/progressive/preview dialers, shared team inbox, SMS marketing, WhatsApp, live chat, call recording, AI transcription, and 100+ CRM integrations (HubSpot, Salesforce, Shopify, Zoho, Zapier & more). Perfect for stores, support teams, sales outreach, and multi-location businesses. No contracts, pay-as-you-grow pricing Instant setup, port your number for free Trusted by 17,500+ companies worldwide 24/7 human support

VoIPstudio is a cloud-based business telephone system created for organizations that require professional communications features without the hassle and expense of owning and managing on-site PBX equipment. With thousands of systems installed worldwide, VoIPstudio is the first choice for companies when selecting a VoIP solution. Its power and simplicity make VoIPstudio perfect for any business, from startups to mid-sized call centers. With VoIPstudio, you get an all-in-one business VoIP solution with no contracts and no hidden costs, available at consumer-level pricing. All our clients get all our features from day one, including a virtual switchboard, virtual numbers, conference calling, call center, call recording, and much more. VoIPstudio also includes advanced communication tools like videoconferencing, screen sharing, or integration with lots of CRMs and other business tools. VoIPstudio is a global company that serves more than 15 million minutes of daily talk time to

Unified business communication and collaboration tools. Reimagine how your teams work with an all-in-one, open collaboration platform with AI Companion. Streamline communication, improve productivity, optimize in-person time, and increase employee engagement, all with Zoom Workplace. Make meaningful connections with a unified solution for meetings, team chat, whiteboard, phone, and more. Reduce wasted time going back and forth between applications. Zoom Workplace provides you with a seamless, automated user experience from your mobile device or desktop Streamlined features give you the ability to initiate a call or meeting from a chat, collaborate on a whiteboard from your desktop or room, and see whether a co-worker is available with presence.

A powerful feature-packed Cloud phone system to help your business thrive. Flexible, scalable and compatible with the devices you already use, Yay.com offers a communication solution that combines a host of of professional features with lightning fast set-up and ease of use. Built from the ground up to support businesses around the world, wherever they're based. Connect teams and collaborate across borders in minutes with a dynamic phone system that lets your teams work the way they want to. Deliver improved caller satisfaction through a range of business features such as CRM integrations, call queuing, IVR call menus and more. Get started with a free trial and discover how our phone system can seamlessly enhance your business and help you reduce your business costs today.

NXTPulse offers cutting-edge innovations that can elevate your business operations significantly. The platform is packed with a variety of features, including seamless integrations with Microsoft Teams, which enhance its functionality. With its extensive capabilities, NXTPulse empowers you to work flexibly from any location at any time. It is compatible with leading platforms such as Office 365 and numerous popular CRMs. You can rely on NXTPulse to manage your hosted voice solutions, freeing you from that responsibility. Regular updates and new features ensure that the platform remains current and effective. Strong SSL security safeguards the connections. 3cx Integrations - M365, Microsoft Teams, Microsoft Dynamics, Google Workspace, Hubspot, Sales force, Connectwise, Freshdesk, Freshsales, Freshworks, Zoho, Zendesk, Pipedrive and much more Self-Managed or Fully Managed options to fit your needs All inclusive licenses and SIP Trunk included No per Minute or per number cost.

Ajoxi is a leading provider of wholesale VoIP termination services, dedicated to delivering exceptional connectivity and reliability. Utilizing state-of-the-art equipment and advanced routing technologies, Ajoxi ensures that every call is of the highest quality. Their commitment to excellence is backed by a team of experienced technicians who monitor the network around the clock, 24/7. This proactive approach allows them to swiftly identify and resolve any potential issues, minimizing downtime and ensuring seamless communication for their clients. Whether it's for high-volume call centers or international communication needs, Ajoxi's robust infrastructure is designed to handle the demands of today's fast-paced digital world. Their focus on quality, reliability, and customer satisfaction makes them a trusted partner in the VoIP industry. With Ajoxi, you can expect nothing less than top-tier service and consistent performance that supports your business communication needs.

CloudCall is the only communications software dedicated to businesses who use CRMs. By capturing all calls and communications, and saving them into the CRM contact records, CloudCall helps businesses make more insightful decisions, stay in control of teams working from anywhere, and get more done faster. Let data drive your business Capture data from your communications, surface key insights, and automate key workflows. Saving time, increasing efficiency and profits. Get more control Keep everything in your CRM and see how your teams are doing from anywhere. Boost productivity and profits Make more placements, close more deals, get more done faster, with Click-to-call, Power Dialler and Automated workflows.

Imagine if your customers could seamlessly communicate with your business how they want to. Calling, SMS, messaging, social, and chat all unified in one interface with one goal: simplifying communication. You’ll want to see what we have in store. With Vonix, you’ll be able to call, text, social message and chat using your business profile from one mobile app. You’ll access all your business phone features as if you were in the office, using your business number from your cell phone. Text or message your customers, and transfer whole conversations with the internal collaboration features. Sync conversations into your customer records and keep everyone in the loop. Access business calling features like interactive voice menus, day/night mode, voicemail transcription & more. Improve satisfaction and get faster resolutions by enabling customers to communicate via their preferred method.

Kloud7 is a comprehensive business technology provider specializing in Managed IT Services, Cloud Telecommunications (VoIP), and Unified Communications (UCaaS). Designed as a "one-stop shop" for Small to Medium-sized Businesses (SMBs) and enterprises, Kloud7 replaces outdated infrastructure with scalable, internet-based solutions. Their flagship offering, Business Voice, is a cloud-hosted phone system that enables users to make calls from desk phones, computers, or mobile apps, facilitating seamless remote work. Key features include AI-powered call recording with sentiment analysis and deep analytics. Beyond voice, Kloud7 offers Managed IT Services, acting as an outsourced IT department that handles cybersecurity, server management, disaster recovery, and 24/7 technical support. Their portfolio also includes Transmit, a mass communication tool for SMS and voice marketing, and K7 Connect, a unified platform integrating voice, video, and messaging with tools

Ecosmob offers market-leading expertise and solutions to power businesses across the world implementing trending technologies. Modernize your network with customized solutions that are highly advanced and cost-effective. With extensive expertise in Open Source telephony development, Ecosmob provides innovative VoIP services tailored to suit your business needs. Create interactive, scalable, and robust web applications using the most advanced tech stacks and frameworks. Take your business to the next level with a responsive website designed to be user-friendly and set your brand ahead of your competition. Expand your digital reach and target a wide spectrum of customers via mobile application development services. We build customized, highly scalable, and robust mobile applications to match your business requirements. Unlock new business possibilities and opportunities with AI and ML technologies.

Vodia Networks offers a SIP PBX platform that runs smoothly across cloud, on-premise, and hybrid setups. Our PBX supports a broad range of devices, including SIP phones, softphones, and WebRTC clients, to help businesses communicate flexibly across locations. Our Session Border Controller (SBC) has been certified by Microsoft for Microsoft Teams, and our PBX features AI-powered real-time call transcription using OpenAI’s Whisper technology. Vodia supports easy deployment through prepaid cloud PBX instances and traditional installations across various environments. Our phone system integrates with some of the world’s best business software, including ActiveCampaign, CallSmart, Cliniko, HighLevel, Microsoft Dynamics 365, monday.com, Shiji PMS, UPilot, and other industry-standard business communications platforms, so our customers can deploy cutting-edge business tools alongside our best-in-class, feature-rich cloud phone system.

SIPcity is the only Australian business VoIP provider delivering its cloud PBX with all features and functionality included free as part of the service. We’re dedicated to offering high-value business features. Specifically, this includes: - call recording - conferencing - auto-attendant - simultaneous ring/one number - vFax, (known as virtual fax, faxmail or fax to email) - voicemail to name a few, without the additional of per user license costs. SIPcity is pre-pay only which is favored by most cloud solution providers worldwide. As a Cloud PBX customer, it’s easy to upgrade or downgrade your service to suit your business needs for instance because you’re not locked into any contract for the hosted solution.

We unleash human momentum with collaboration, connectivity, and communications technology. All business is human—and when custom technology empowers human ingenuity, people and companies thrive. High performing teams do more, achieve more, and win more. Companies become agile, efficient, and resilient. Our team takes pride in making technology easy and cost effective. We love what we do—and it shows in the way we partner with you, from our first conversation to ongoing post-install support. Working with over 30,000 customer locations in 65+ countries, we deliver straightforward, secure, and scalable global managed services and advanced collaboration and communications solutions. Together let’s build your human momentum. More at gomomentum.com