Best Call Center Software for Linux of 2025

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.

1,125 Ratings

Starting Price: Free for up to 10 users

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VirtualPBX

VirtualPBX Contact Center is revolutionizing the market for small to medium-sized contact centers. With over 27 years of experience in the cloud communications industry, VirtualPBX offers a comprehensive and personalized approach to remote contact center solutions. As a US-based, privately held company, VirtualPBX brings award-winning 24/7/365 customer support, scalable and reliable software with 99.999% uptime, and infinitely customizable call flows and queue options to ensure that each client's unique needs are met.

143 Ratings

Starting Price: $9/month

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DialerAI

Star2Billing S.L.

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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T-Max Predictive Dialer

T-Max Dialer & Communications

Unlimited Calling - FREE TRIALS T-Max Predictive Dialer, an inbound and outbound CRM dialing system, is ideal for debt collections, marketing, and sales teams. With T-Max Predictive Dialer, users can reach as many live contacts as possible at one time by dialing up to five numbers at once. T-Max Predictive Dialer's automated system enables users to reduce the time to take on busy signals, wrong numbers, or no answers and instead aim to connect all receivers to a live agent at first contact. Managers can use monitoring to listen to agent calls, barge in or take over calls for QA or to help close the call. If you need a hosted auto dialer VOIP phone system with power dialer, preview dialer, sip phone, webphone, voicemail drops, local caller ID, call center, text to speech, and telemarketing capabilities We also have Voice Broadcasting Auto Dialer Trials. Compatible with ANY CRM including Salesforce, Zoho, & Monday

4 Ratings

Starting Price: $100.00 per month

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Insider Telecom

Get a business phone system without breaking the bank! We help small businesses in the United States get access to big business tools, while keeping prices within reach. In fact, with Insider Telecom, we provide the equipment as long as you need it. Enjoy features like caller ID, call forwarding, conference calling, intercom, auto attendant, and many more! No big upfront purchase for a complete business phone service. That's the Insider Telecom difference. Our support team knows that you probably don't speak "telephone." So they're trained to listen for and understand the root of your specific need - from training and configuration, all the way to fitting you with a different phone system. We want to be sure you're working with the right platform.

1 Rating

Starting Price: $17.95 per user per 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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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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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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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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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 delivers a versatile platform and flexible applications tailored to managed and cloud service providers seeking competitive differentiation. Their robust yet affordable communications tools allow both small businesses and global enterprises to streamline interactions and enhance customer experience without large upfront costs. The Thirdlane communications platform is a one-stop-shop solution for MSPs, UCaaS providers, and resellers. Its advanced voice, collaboration, and video conferencing tools are designed to be fully customizable and seamlessly integrated with partners’ own branding. Main products: Thirdlane Multi Tenant PBX, Thirdlane Business Phone System and he Thirdlane Connect which provides users with chat, voice and video calls and conferencing, SMS, screen sharing, CRM integration in modern web browsers, on mobile phones, Windows, Linux and Mac desktops., these solutions empower businesses to boost productivity, drive sales & strengthen customer relationships.

25 Ratings

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Zadarma

Business Phone system without heavy hardware and wiring. Zadarma offers VoIP, Cloud PBX, CRM, speech analytics, call tracking, eSIM, website widgets, integration with top CRM systems, and much more. Take advantage of our free Cloud PBX offer to create a versatile business phone system in a matter of minutes. The PBX supports Interactive Voice Response (IVR), Conditional and Unconditional Call Forwarding, Call recording and statistics, speech analytics, and many other powerful features. With an intuitive software wizard and our clear instructions, even the most non-technical individuals can easily set up the system. Establish your local or international presence with virtual phone numbers from 100 countries around the world starting from just $2 a month.

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.

12 Ratings

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livepro

livepro is the perfect Knowledge Management solution for Customer Service/Experience - whether it be on the phone, behind the counter, in the field or customer self-service, livepro has the tools to improve cx scores, cut training times, improve compliance and boost staff engagement with confidence. livepro is purpose built Knowledge Management for Customer Experience. We focus on delivering answers to agents, not long complex documents. This is made possible by livepros powerful features like search and easy to follow process guidance. livepro requires next to no training and turns your agents into experts meaning staff confidence and customer satisfaction go up while AHT and training costs are cut down. Increase Customer Satisfaction by reducing AHT up to 25% and cutting transfers by up to 35%. Improved Staff Engagement and Induction-Training Periods cut by 50% or more. Improve Compliance & Risk with Authored Only Content & SOC Certified Secured Data.

10 Ratings

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Variphy

Variphy is the preferred analytics and management platform for Cisco Collaboration. Variphy provides all the functions you need in a single pane of glass. We built our products and features with the feedback and requests of Unified Communications professionals like you. Discover what’s possible with Variphy: - Dashboards, UCCX Wallboards, & Widgets - CUCM CDR Reporting & Call Analytics - UCCX Reporting & Analytics - Cisco CUBE CDR Reporting - Variphy Cloud - Webex Calling Reporting & Analytics - Zoom Phone Reporting & Analytics -Microsoft Teams Reporting & Analytics - Remote Phone Control, Macros, & Broadcast - Change Management & As-Built Reporting - DN & DID Inventory Management - Enhanced Consulting Services

5 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.

3 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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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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Sococo

Sococo is the virtual office where distributed teams come to work together each day, side-by-side, no matter where team members might be. Down the hall, across campus, or halfway around the world—working in your organization's online office is even more productive than being on the same floor or in the same room.

1 Rating

Starting Price: $13.49/user/month

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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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Dixa

Dixa is customer service software that empowers brands to create great experiences for customers and support teams alike in a conversational, friendly, and engaging way. Dixa unifies voice, email, chat, and messaging apps in one single platform, enabling brands to have more meaningful conversations with their customers, driving customer loyalty, and ultimately “customer friendships.” With Dixa, agents have all the context they need to provide fast, efficient, and effective customer service every time.

1 Rating

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Yeastar P-Series PBX System

Yeastar

More than just a PBX, Yeastar P-Series PBX System is a converged system purposed-built for SMEs that have higher expectations on business communications. As a “PBX-Plus-More” solution, the P-Series unify voice, video, applications, collaboration, and more together, helping SMEs to enable extra productivity, fill the UC gap, and accomplish more sophisticated tasks.

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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OnSIP

Junction Networks

OnSIP delivers powerfully simple business communications services to more than 100,000 customer accounts. We’re proud to provide the benefits of an on-demand phone system without the high cost, burden, and inflexibility of traditional phone systems. With unprecedented pricing flexibility and no contracts, you can customize your communications by adding users and features and enjoy enterprise-level communications without commitment. Set up is easy and backed by free onboarding and award-winning, U.S-based support. Unlimited plans include a variety of features – voicemail to email, ring groups, call parking, music on hold, video conferencing, call recording, dial-by-name directories and free SIP phones for 5+ users. OnSIP’s platform is built on patented, geographically distributed technology to provide 100% redundancy and massive scalability. Enjoy the confidence that your phone system is always up and always on to keep your teams connected. Sign up for a free trial today!

Starting Price: $18.95 per month

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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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Best Call Center Software for Linux

Compare the Top Call Center Software for Linux as of July 2025

What is Call Center Software for Linux?