Best Call Center Software for Linux of 2026

3CX

3CX is a software-based, open standards IP PBX that offers complete Unified Communications, out of the box. Suitable for any business size or industry 3CX can accommodate every need; from mobility and status to advanced contact center features and more, at a fraction of the cost. Ideal for companies working remotely, 3CX includes mobile apps, video conferencing and website live chat. Installation, management and maintenance of the PBX is so easy that you can effortlessly manage it yourself, whether on an appliance or server at your premise on Windows, Linux or in the cloud. Alternatively you can choose to have it hosted by 3CX for a completely hassle-free solution.

1,199 Ratings

Starting Price: Free for up to 10 users

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Yeastar P-Series PBX System

Yeastar

The Yeastar P-Series Phone System has a built-in call center solution. This solution offers businesses a comprehensive package for calls, video, messaging, integrations, and more. It is suitable for businesses of all sizes.

101 Ratings

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DialerAI

Star2Billing S.L. (ESB65173742)

Our autodialer software are used for automating sales calls, payment collections, appointment reminders, phone polling and market research. It can also be used for mass emergency voice broadcasting. The system is ideal for Telcos and companies selling callcenter services as it is multi-tenant with billing and white-labeled while being economical to run as you choose your own Voice Provider. Our autodialer software can massively increase productivity by dropping busy, unanswered and disconnected line, passing calls answered by real people back to your agents, and leaving messages on answering machines.

5 Ratings

Starting Price: $199.00/month

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Adversus

Adversus is an outbound dialing solution that helps you streamline your call strategies, automate manual processes, and provide valuable insights to improve your outbound workflows and efficiency. Adversus was born in 2015 after our founders experienced a lack of flexibility with the solution they worked with. The dream was to build an outbound solution that would change the game․ We believe in user-driven innovation, and we acknowledge that every single user has different needs and demands. We provide a solution that incorporates flexibility and customization to every aspect of the workflow. At Adversus, our primary focus is to have a future-proof solution that never falls behind. We do not just want to adapt to the market but instead push the boundaries of what is possible. Adversus is used by businesses in a wide range of industries, with the common goal to make their outbound call activities more efficient. The size ranges from one to several hundred end-users.

170 Ratings

Starting Price: €169

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VirtualPBX

VirtualPBX stands as an acclaimed Business Phone System Provider, renowned for its award-winning services. Offering industry-leading features, boasting 99.999% reliability, and competitive pricing, VirtualPBX equips businesses with top-tier communication tools for seamless unified communications. Catering to a diverse range of enterprises, from entrepreneurs to contact centers seeking a complete contact center solution. VirtualPBX serves as the ultimate destination for modern business VoIP needs. With plans starting at just $18 per month, VirtualPBX ensures accessibility and excellence in communication solutions. Get a free demo today!

12 Ratings

Starting Price: $18/month

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uContact

net2phone

Deliver a personalized customer experience with every interaction, across every channel, with uContact, net2phone’s cloud contact center solution. uContact is a scalable, robust contact center platform, geared towards call centers or BPOs with a very high volume of calls, requiring maximum call routing flexibility; or large organizations relying on a contact center environment looking to manage heavy inbound and outbound calls for sales and support teams. Our robust, full-featured platform includes: • Agent & Supervisor Capabilities - Call Queues, Monitoring, Custom Scheduling, Workforce Management, Breaks & Wrap Up, Disposition Coding • Voice - ACD, IVR, Auto Dialers, Call Recording, Screen Pops, Voice Automation, Text to Speech and ASR • Omnichannel - WebChat, SMS/MMS, WhatsApp, Social Media, Video, Email and Interaction Recordings • Automation - Chat Bots, Form Creator, Workflow Designer

1 Rating

Starting Price: $59.99/month/user

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T-Max Phone Systems

T-Max

The Hosted Business Phone System PBX will make any company sound and function like a Fortune 500 company. Your company can have all your calls answered by an auto-attendant allowing for callers to choose departments, extensions, dial by name or many other options. If you are working on the go you can have them automatically transferred to your cell phone. T-Max is fully geo-redundant. In other words, our servers are being hosted in a top-notch data centers throughout the United States. We use multiple carriers ensuring maximum connectivity to the PSTN. T-Max uses high-quality desk phones from Polycom & Yealink, with many different models to pick from to fit your unique environment best. We offer reception consoles, agent phones, wireless phones, and conference room phones. Our Hosted Business Phone System is the best choice for the price on the market today. 1-888-245-3483 Departments Extensions Digital Receptionist Voice Prompts Voice Mail Fax Service and Much More

Starting Price: $19.99 Mo/Ext

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My Call Cloud

My Call Cloud provides robust, stable, and user-friendly hosted cloud Contact Center Solutions. My Call Cloud assists clients to effectively manage Inbound, Outbound and Blended calling with agents in-house or, remote. Cutting-edge contact center solutions such as SMS, IVR message blasting (with Text-to-Speech), FB messaging, and other services such as No-Dial (voicemail delivery to cell phones without ringing) are just a few of the full-service suite options available to our Call Center Software Business Partners. Upgrade your contact center software expectations with My Call Cloud automated dialer technologies. With full campaign and list management, leads can be optimized to reduce call ratios, achieve sales and marketing goals and connect with customers real-time without delays. Built-in safeguards ensure compliancy with the Telephone Consumer Protection Act with multiple internal do-not-call lists supported. Best in class cloud call center software!

Starting Price: $65.00/month/user

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CloudTalk

Searching for a smart call centre software? Try CloudTalk.io, a new-generation cloud phone system for SMEs, startups, online stores or call centers (sales and customer service teams). 25+ integrations with favorite CRM, helpdesk or e-commerce tools as Shopify, Salesforce, Pipedrive, Intercom at hand along with a 5-star rated customer success team make it easy to seamlessly migrate or set up your new cloud call centre from scratch. We are rapidly growing every month and we have already successful cooperation with 1000+ companies across the world like DHL, Yves Rocher or Karcher. Try 14 day FREE trial from CloudTalk (no credit card details required).

60 Ratings

Starting Price: $25.00/month (billed annually)

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KrispCall

KrispCall 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.

34 Ratings

Starting Price: $15 per user per month

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XCastLabs

The First and Still the Best in VoIP Communication! Our proprietary technology has been providing telecom services for over 20 years. XCast’s broad suite of products—Hosted IP-PBX, SIP Trunking, Carrier Services and Call Center Solutions—are available directly from XCastLabs or through our white label Resellers, our agent partners, carriers or call centers. XCast exceptional service, rates, and products meet the FCC standards for STIR/SHAKEN network compliance. XCast’s Hosted PBX solution is delivered over the Internet to any of your connected devices. Promotional plans start as low as $9.95 per month and include FREE Outbound minutes and a FREE Yealink Business Phone per extension. Sip Trunk Plans begin at $4.95 w/unlimited inbound minutes and free installation. Our Automatic Call Distribution (ACD) system has full reporting, automated customer callback, custom prompts, music on-hold, call recording, call monitoring (with whisper and barge-in), call transfer and more!

29 Ratings

Starting Price: $4.95/month

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Thirdlane

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.

29 Ratings

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Zadarma

Powerful Cloud Telephony for Global Businesses Zadarma offers a feature-rich VoIP platform designed for businesses that want flexibility, scalability, and professional communication without high costs. Set up your cloud PBX in minutes, manage international teams, and serve customers worldwide — all from a single interface. Key features: - Virtual phone numbers in 110+ countries - Free cloud PBX with IVR, call routing, and analytics - Integration with CRMs: HubSpot, Zoho, Bitrix24, and more - AI Voice Agent and AI-speech recognition and analytics - Apps for desktop, mobile, and browser-based calling - AI-powered voice agents and call tracking - Full control via web interface and API Ideal for remote teams, support centers, and growing companies looking to modernize their phone systems.

12 Ratings

Starting Price: $2/month

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PBXware

Bicom Systems

PBXware is the world’s first and most mature IP PBX Professional Open Standards Turnkey Telephony Platform. Since 2004, PBXware has deployed flexible, reliable, and scalable Next Generation Communication Systems and VoIP solutions to Small and Medium sized Businesses (SMBs), enterprises, Internet Telephony Service Providers (ITSPs), Call Centers and governments worldwide by combining the most advanced of the latest technologies. Bicom Systems’ softswitch is offered in the Business, Call Center and Multi-Tenant Editions, each supporting specific features maximizing performance, reliability, and expandability.

11 Ratings

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ICTBroadcast

ICT Innovations

ICTBroadcast is a multi-tenant, white label, unified communications-based autodialer, predictive dialer, progressive, preview and power dialer software solution feature inbound IVR, IVR Studio, press 1 campaign, complete call center, AMD, HLR, DNC, survey, appointment, Dialog flow integration, Rest APis, and WEBRTC also supporting Voice, SMS, Email and Fax communications . Suitable for small business owners, entrepreneurs, and Service Providers. It enables service providers to offer a wide range of telemarketing, call centre and contact centre-related services. It can be scaled to blast thousands of simultaneous calls and it fits most voice broadcasting and call centre scenarios with effective and efficient communications management.

4 Ratings

Starting Price: $0.00/one-time

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net2phone

net2phone provides innovative and affordable cloud based telephony software and services to both small and mid-sized businesses and large or multinational enterprises. Our Unified Communications and Contact Center solutions provide advanced features that can be customized to suit your unique business needs while ensuring simplicity through implementation and use. net2phone’s compelling UCaaS offer combines voice, video, chat, and messaging under one platform, includes advanced features and integrations, and unlimited calling to over forty popular destination countries. uContact, net2phone’s omnichannel CCaaS solution, streamlines all voice and digital interactions, enabling contact centers to meet customers in the digital channel of their choice and integrating all touchpoints into a Unified Inbox. Other flagship solutions include SIP Trunking services, native integration with Microsoft Teams, and international connectivity capabilities.

3 Ratings

Starting Price: $17.99/month/user

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iCallify

iCallify is an intelligent, multi-tenant contact center software built to streamline business communications and enhance customer engagement through AI-powered automation. The platform supports inbound, outbound, and blended call center operations with advanced features including predictive dialer, power dialer, preview dialer, auto dialer, IVR, voice broadcasting, WhatsApp integration, WhatsApp Business Calling, click-to-call functionality, real-time monitoring dashboards, and advanced call distribution strategies. Designed for scalability and flexibility, iCallify helps organizations improve operational efficiency, increase conversion rates, and deliver personalized customer experiences. The system supports multi-channel communication, advanced reporting, supervisor controls (monitor, whisper, barge), and integration capabilities for CRM and third-party systems.

2 Ratings

Starting Price: $10 /user/month

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My Country Mobile

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

2 Ratings

Starting Price: $9.99/user/month

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TelebuHub

Telebu

Telebu Hub or Hub is a complete inbound and outbound contact center software that can be deployed on the cloud or on-premises. It’s easy to set up, easy to scale, and easy to use.

2 Ratings

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VoIPstudio

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

1 Rating

Starting Price: $6/month/user

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AVOXI

The effective, affordable, and easy-to-use cloud-based call center software, AVOXI Genius. Easily manage your business communications from an intuitive, web-based contact center. AVOXI Genius is the first platform to integrate your contact center solution with your voice service, with virtual phone numbers available for instant activation in 170+ countries. With plans starting at $19.99 per user, AVOXI Genius is one of the most affordable solutions worldwide! Get 2 months free--limited time only.

1 Rating

Starting Price: $19.99/month/user

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Smartz Solutions

Smartz Solutions is the disruptor reshaping the contact center landscape. Traditional legacy systems, with their entangled infrastructures and exorbitant fees, have held businesses hostage for too long. Contact centers are tired of being burdened by disjointed systems with hefty price tags and bad customer and employee experiences. We’re redefining the contact centre experience through our AI-powered 360-degree experience platform. We’ve been there. We paid for the legacy systems. We had 15 different systems running (at a snail's pace) at once to be able to run our call centre. We know the pain of not being able to find data quickly enough (sometimes at all) to help customers. And we sure know what it’s like to have employee information in multiple systems; never showing a clear view of the business. Losing money, opportunities and patience doesn’t have to be how you continue to run your call centre. Through a comprehensive tech stack, you will finally have your entire custom

1 Rating

Starting Price: $55.00/month/user

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Monster VoIP

Monster VoIP was established to distribute superior voice quality and maximized uptime to customers from here in L.A. to New York to Washington, D.C. to Houston to Dallas to Chicago and beyond, while delivering unparalleled service and customer satisfaction. We started by setting up data centers in Las Vegas, New York, Dallas, and Minnesota to ensure geo-redundancy, with all endpoints multi-registered at all four facilities. (This is just a fancy way of saying that multiple locations means you can expect amazing voice quality and unparalleled business phone uptime.) We then made sure to offer a complete suite of communication tools in one platform. This means you and your team only have to learn our easy-to-use user interface for all of your communication efforts. To make good on our customer satisfaction promise, we then decided to provide personalized setup and ongoing 24/7/365 support to every business VoIP customer that walks through our (virtual) doors.

1 Rating

Starting Price: $27 /month

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JustCall

JustCall.io

The Cloud Phone System of choice for modern sales and support teams. End clueless conversations by adding context to every call. Call software, virtual numbers, SMS campaigns, native CRM integrations, and lots more at just $25 per user. - 100+ integrations with CRM & Business tools - Click to call from CRM - Go live in 70+ Countries - SMS Workflows & Automation - 3 sales dialers to choose from - Call queueing and forwarding - Comprehensive analytics - Conversation intelligence & much more Get 70% off on your first month!

1 Rating

Starting Price: $30 per user per month

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Spok Care Connect®

Spok

Communication among care team members involves a complex relationship between people, devices, and hospital systems. You might be struggling with an overwhelming surge of data, gaps in your communication, or inefficient communication workflows. These challenges make your job harder and negatively impact patient outcomes. There’s a solution to help – Spok Care Connect®. Spok Care Connect is the unified communication platform that provides care team collaboration, closed loop communication, and secure messaging to enhance your clinical workflows. It’s possible for one unified communication platform to solve the multiple challenges across different areas, departments, and locations in your health system.

1 Rating

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Telzio

From startups to enterprises, companies worldwide rely on Telzio for mission-critical phone services. Easy to deploy, manage, and scale. Telzio Call Flows will have you up and running with a complete business phone system in 5 minutes. Our interface gives you complete control so you don't have to call a tech to make a change to your phone system. It's so easy, you can do it yourself. Expect great customer service from our team, dedicated specialists who know your account, and fast response times you can count on.

Starting Price: $50/month for unlimited users

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2600Hz

An unrivaled UCaaS solution designed to empower Service Provider success. Differentiate your brand and offering in the market with a completely customizable, white label solution. KAZOO is 2600Hz's turnkey UC platform, offering the flexibility you need to provide a superior communication experience. Give your customers a communication solution that will make them successful. 300+ APIs enable you to customize a solution to help your customers do business better. White label your solution to build and maintain your brand recognition in the market. Low upfront costs let you get started quicker and stay cost competitive. Reliability and geo-redundancy ensures your customers are always online. Mobile ready lets your customers get business done when and where they need to. KAZOO is a multi-tenant platform and gives you the ability to open your sales channels. Bring on resellers, go direct, or have an agent model.

Starting Price: $3.50/month

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CloudCall

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.

Starting Price: $15/user/month

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NOLA AUTOMATION

The NOLA Automation Software all in one allows your business strategy to gather momentum in the most efficient manner. With the help of our software, you would not only be able to create schedule campaigns broadcast, In-outbound call, in-outbound predictive, SMS 2 WAY, voice drop, and email and many more, you also get the chance of emailing a link to the prospect that would redirect them to their accounts with the help of an online portal.. much, much more...

Starting Price: $30/user

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ID Cloud

Teckinfo Solutions pvt. ltd.

ID Cloud is an AI-powered omnichannel contact center platform by Teckinfo Solutions, built to modernize customer engagement with speed, intelligence, and security. It unifies voice, email, chat, WhatsApp, social media, and video into a single. With advanced CTI, ACD, WebRTC voice, and secure RTP, it ensures reliable communication. AI-driven features like agent assist, chatbots, voicebots, auto email responder, transcription, sentiment analysis, and AI-powered QMS automate workflows and elevate quality. Seamless bot-to-agent handover, strong security, flexible deployment options, CRM integrations, and extensive APIs make ID Cloud ideal for startups to enterprises seeking scalable, efficient customer experience transformation.

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Best Call Center Software for Linux

Compare the Top Call Center Software for Linux as of March 2026

What is Call Center Software for Linux?