Best Business VoIP Providers for Linux of 2025

3CX is an open-standards, software-based IP PBX that provides complete Unified Communications right out of the box. 3CX is suitable for all industries and sizes. It can provide everything you need, from mobility and status to advanced call center features and more, at a fraction the cost. 3CX is ideal for remote companies and includes mobile apps, video conference, and website live chat. The installation, management, and maintenance of the PBX are so simple that you can easily manage it yourself, on your own appliance, server, or on a cloud-based platform. You can also choose to have it hosted on 3CX for an easy solution.

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. Moreover, NXTPulse provides robust conference bridges, facilitating effective communication among all participants. 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 connection between your organization and the NXTPulse cloud, ensuring that your communications remain secure. In addition to its numerous productivity-boosting features designed to enhance customer service and operational efficiency. 3cx Integrations - AI, Microsoft Office 365, Google Workspace and more for a robust and flexible phone system tailored to your business needs. Inclusive Licensing - Benefit from included 3cx licenses, reducing additional costs. Scalable Solutions - Grow your business with scalable phone systems that adapt to your evolving needs. Fully Managed Solutions - Enjoy peace of mind with our fully managed services Amazon Web Services - Utilize the power of AWS for reliable and scalable hosting

At VirtualPBX, we offer a comprehensive suite of communication solutions tailored specifically for businesses like yours. This includes our versatile business phone plans, which are designed to be both flexible and scalable, allowing you to customize features such as call routing, voicemail, and conferencing to meet your organization's unique needs. With our contact center solutions, we empower you to enhance your customer service and support efforts through features like interactive voice response (IVR), call queuing, and real-time monitoring. Additionally, our business texting service enables convenient communication with both customers and colleagues via SMS. And if you're looking to transition from traditional analog phone systems, our Airdial Pots replacement solutions offer a seamless move to modern, cloud-based alternatives. Overall, at VirtualPBX, we're dedicated to equipping businesses like yours with the necessary tools to streamline communication, improve customer service, and enhance overall productivity. Get a free demo today!

Virtual phone system designed for businesses. All you need to manage business communications via your phone and desktop. Start at $19 per month You can make and receive business calls from your smartphone or desktop. You can make and receive calls from any smartphone or desktop using our virtual phone system. Talkroute gives you the power of an enterprise-level telephone system without the need to purchase or maintain additional equipment. Get our apps today to make business calls from your smartphone and PC.

You don't need to spend a fortune to get a business phone system. We make it easy for small businesses to access big business tools in the United States. Insider Telecom provides the equipment for as long as you need it. You can enjoy features such as caller ID, conference calling, call forwarding and intercom. A complete business phone system requires no upfront investment. This is the Insider Telecom difference. Our support team understands that you may not be able to speak "telephone." They are trained to listen to your needs and help you choose the right phone system for you. We want you to feel confident that you are working with the right platform.

Hosted Business Phone System PBX can make any company sound and function as a Fortune 500 company. All your calls can be answered by an auto-attendant. This allows callers to dial by name, choose extensions, and select departments. You can have your calls transferred to your mobile phone automatically if you're on the move. T-Max is completely geo-redundant. Our servers are hosted in top-notch data centers across the United States. Multiple carriers are used to ensure maximum connectivity to the PSTN. T-Max uses high-quality desk phones made by Yealink and Polycom. There are many models to choose from to best suit your environment. We offer a variety of reception consoles, agents phones, wireless phones, conference room phones, and wireless phones. The best Hosted Business Phone System for the price is available today. 1-888-245-34883 Departments Extensions Digital Receptionist Voice Prompts Voice Mail Fax Service And Much More

Are you looking for a smart phone system? CloudTalk.io is a new-generation cloud phone system that can be used by SMEs, startups and online stores. It also works with call centres (sales or customer service) and call centres (sales). You will find 25+ integrations with your favorite CRM, helpdesk, or e-commerce tools like Shopify, Salesforce or Pipedrive at your disposal along with a 5-star customer success team that makes it easy to seamlessly migrate, or set up a new cloud call center from scratch. We are growing rapidly every month and have already established successful partnerships with more than 1000 companies around the world, such as DHL, Yves Rocher, Karcher. CloudTalk offers a 14-day free trial (no credit card details necessary).

Our proprietary technology has been providing telecom services since more than 20 years. We are experts in Hosted IP-PBX and SIP Trunks, Call Center Software, Wholesale, Data Services, etc. Our exceptional service, rates, and products meet the FCC standards for STIR/SHAKEN network compliance. The XCast Unified Communications is Scalable and International with unlimited, free, planet-wide, extension-to-extension, all with a web-based Administrator Control Panel (ACP) to help you manage all your features. Promotional plans: Hosted PBX Basic - $9.95/month Sip Trunking Basic - $4.95/month

Thirdlane is built for service providers and MSPs who need a multi-tenant, white-label UCaaS platform with deep API control. It delivers voice, video, chat, and contact center features while giving providers the ability to integrate billing, CRM, and IT workflows with ease. Why providers choose Thirdlane: - True multi-tenant PBX architecture built for scaling to thousands of tenants. - White-label flexibility - deliver a branded experience to your customers. - Thirdlane Connect apps unify messaging, calling, and meetings across all devices. - Built-in Contact Center for sales and support teams. - CRM screen pops and Click-to-Call to boost productivity. - Extensive APIs for automation and third-party integrations. Business outcomes: - Launch branded UCaaS without the heavy R&D cost. - Increase recurring revenue with scalable multi-tenant architecture. - Offer enterprise-grade features at a competitive price point. Thirdlane empowers providers to own their UCaaS offerings end-to-end, increasing margins and ensuring long-term customer loyalty.

Smart VoIP Solution for Teams of Any Size Zadarma replaces traditional phone systems with a cloud-based platform that’s easy to configure and use. Whether you’re a freelancer, small business, or global enterprise — Zadarma scales with your needs. What you get: - Local, mobile, and toll-free numbers worldwide - Virtual PBX with call queues, voice menus, call recording - Connect multiple offices and remote employees - Affordable call rates and flexible pricing plans - Real-time call statistics and recording storage - Support for IP phones, softphones, and browsers No hardware needed — just connect your team and start calling.

PBXware is the first and most established IP PBX Professional Open Standards Turnkey Telephony Platform. PBXware has been providing flexible, reliable and scalable Next Generation Communication Systems (NGCS) and VoIP solutions to small and medium-sized businesses (SMBs), enterprises and Internet Telephony Service Providers, (ITSPs), call centers and governments around the world since 2004. This is done by combining the best of the latest technologies. Bicom Systems softswitch is available in the Business, Call Center, and Multi-Tenant Editions. Each edition supports specific features that maximize performance, reliability, expandability, and expandability.

Discover how the Telnyx API is a developer-friendly tool that can transform your business communications. Telnyx is a communication platform that can be customized to meet your specific needs. Our network was designed with real-time communication in mind. We can deliver high quality calls, messaging, data, and data all over the globe. Our SMS API makes it easy to create reliable messaging. Two-factor authentication via SMS or voice codes is a great way to protect your data. You can plug and play your VoIP setup within minutes. Get carrier-grade voice and elastic SIP trunks. You can rest assured knowing that you are protected in the event of a network outage thanks to our cloud-agnostic approach. Telnyx enables communications to be deployed exactly according to specifications.

EnableX makes it easy to integrate real-time communications into applications or workflows. It was designed and developed for Service Providers and Systems Integrators. It provides a robust, scalable, secure communications platform without the complexity and maintenance of maintaining the network infrastructure. Developers can quickly customise and embed all of the communication functions, such as voice, video, and SMS, into existing applications, workflows, and systems by simply using EnableX's extensive sets of programmable SDKs and APIs. Businesses can communicate with customers worldwide using the Virtual Number services, as well as advanced features like AI and NLP.

KrispCall allows you to manage all your telephony needs, whether they are personal, business, or corporate, using one app (Web, Android and iOS). You can access international numbers from the comfort of your own home. KrispCall makes it easy to create international numbers for national, local, shortcode and toll-free numbers (for more than 100 countries) in no matter how fast you want. You can easily manage your call logs. KrispCall's unified phonebox allows you to manage and monitor all your business calls, voicemails, and recorded conversations from one place. Call your international clients through their local numbers to earn their trust. KrispCall offers international numbers for your business at an affordable price. Our embeddable widget makes it easy to reach your customers. Clients can now easily call you by clicking on the KrispCall widget embedded in their website.

Affordable phone and SMS service for small businesses. Why spend a lot on a phone solution for your small business? Everyone can use a phone system. TeliDesk, a self-serve platform, can be configured within 15 minutes. Avoid complicated phone systems that take a long time to configure. You are in control of your business, and that includes your phone service. Virtual Office allows you to create your own telecom solution, based on what you need. You can make changes online, anywhere and anytime. Log in and get started! You save more the more you call. As your business grows, so does your discount. Automatic payments by credit card, PayPal or debit card. You prefer to pay in cash? No problem. Virtual Office is a unique service that allows you to choose where your calls will ring. You can send calls to any phone using our easy-to-use interface.

net2phone is a leading Unified Communications provider offering innovative and affordable cloud based telephony services in the US and worldwide. With an embedded Voice over IP experience at the core, 30+ years of on-going innovation, and an ever expanding global presence, net2phone is one of the fastest growing providers in the industry. Our cloud-based, unified communications and contact center solutions help businesses around the globe succeed by interacting with their consumers with enhanced intelligence and insights.

Hosted VoIP solution with European focus, but presence in more than 165+ countries. Premium Plus is the basis of all our solutions, so you get the best quality at the lowest price. All numbers can be used to identify you, including your Geographic, National, TollFree, UIFN, Mobile VoIP, Elastic Pool, and many other types of numbers. We also have a SoftPhone, and will soon launch other Roaming products.

*astTECS IPPBX system is the ideal solution for any business, large or small. *astTECS PBX has all the top-end features at an affordable price and is TEC certified by DoT (Govt of India). *astTECS IPPBX solution allows your business to be flexible, innovative, competitive, and future-ready while reducing telecom expenses. *astTECS Call Center Dialer is an omnichannel contact centre solution that offers advanced features and a real-time dashboard for agent monitoring. Advanced analytics and AI-based call center dialer will improve agent productivity and customer engagement. *astTECS provides a complete call recording solution for your company. *astTECS voice recorder is easy to use and offers advanced features. Integration with any PBX is seamless. Supports ISDN/PRI, IP, analog lines and mobile to record all incoming and outgoing calls.

VoIPstudio is a professional-grade VoIP phone service available at consumer-level pricing. It offers the quality and security guarantees that business customers demand while delivering innovative features and functionality, flexibility, scalability, and a rich user experience, all backed by a dedicated, omnichannel customer support service. VoIPstudio has been optimized to be multisite, multi-country, and with distributed hosting in the cloud, providing the responsiveness and reliability that enterprise customers need. As a result, it is also highly scalable and suitable for single users and companies with hundreds of extensions. Our customers include media organizations, call centers, software providers, weather organizations, and more. Our solution provides flexible capacity, allowing customers to add or remove users as required. It means they do not pay for redundant capacity, while it has been future-proofed to handle spikes in traffic volumes. We offer more than 40 advanced services and features in all our plans, including number portability, call recording, conference calling, internet failover protection, interactive voice responses, call parking, video calls, video conferencing, and much more!

AVOXI Genius is a cloud-based call center software that is efficient, budget-friendly, and user-friendly. It allows you to effortlessly oversee your business communications through a straightforward, web-based contact center interface. This innovative platform uniquely combines your voice service with your contact center solution, offering virtual phone numbers that can be activated instantly in over 170 countries. With pricing beginning at just $19.99 per user, AVOXI Genius stands out as one of the most cost-effective options available globally. Additionally, for a limited time, you can enjoy two months free with your subscription, making it an even more enticing choice for businesses looking to enhance their communication capabilities.

Monster VoIP was founded to deliver superior voice quality and maximize uptime to customers anywhere in the United States, including L.A., New York, Washington, D.C., Houston, Dallas, Chicago, and beyond. It also provides unparalleled customer service and satisfaction. To ensure geo-redundancy, we set up data centers in Las Vegas and New York, Dallas, Minnesota, and Chicago. All endpoints were multi-registered at each facility. This is a fancy way to say that you can expect exceptional voice quality and unmatched business phone uptime from multiple locations. We made sure to provide a complete suite for communication tools on one platform. This means that you and your team need only to learn our user interface for all communication needs. We decided to fulfill our customer satisfaction promise by providing personalized setup and ongoing 24/7/365 support for every business VoIP customer who walks through our virtual doors.

Transform your team's workflow with a comprehensive collaboration platform that features an AI Companion. Enhance communication, boost productivity, make the most of in-person interactions, and foster employee engagement through Zoom Workplace. Establish valuable connections with a singular solution that encompasses meetings, team chat, whiteboarding, phone services, and much more. Eliminate unnecessary time spent switching between different applications, as Zoom Workplace delivers a smooth, automated experience accessible from both mobile devices and desktops. With its integrated functionalities, you can easily initiate calls or meetings directly from chat threads, collaborate on whiteboards from various locations, and check your colleagues' availability with just a glance. This unified approach not only simplifies tasks but also encourages a more cohesive and dynamic work environment.

VoIP Office is a leader in Cloud-based communications and makes it easy to connect to anyone anywhere in the world. Our communications solutions can be used by any business, large or small, in any industry. VOIP OFFICE, a cloud-based communications provider, offers all the features of a traditional PBX but with the latest VoIP technology. VoIP Office seamlessly integrates with your business applications, seamlessly integrating both your desktop and office into one interconnected system.

Yeastar CloudPBX (legacy) is a future-ready phone system that is ideal for small businesses. Linkus UC Clients will give you easy access to remote working and enhanced call efficiency on any device. Hosted deployment is free of upfront hardware costs and virtually eliminates overheads for management. Yeastar's hosted solution is easy to use and has full compatibility features. Any migration or upgrade will be seamless. * Please note that Yeastar P-Series PBX System is the new Yeastar Cloud PBX that comes with versatile call center features and unified communications features.

We guarantee your satisfaction or your money will be refunded. You can save thousands annually without the hassle of installation, management, or maintenance, as everything operates seamlessly in the cloud. Our data centers are located with Equinix, a recognized leader in the industry known for their reliability, security, and global reach, ensuring that every call maintains exceptional quality. Enjoy unlimited calling queues and hunt groups, along with a sophisticated multi-level IVR capability that allows you to route calls based on your specific business requirements. Experience crystal clear HD call quality along with all the features you could desire, including call recording, call waiting, voicemail, and superior voice clarity, providing you with a comprehensive phone service that meets your expectations. Additionally, our service enables flexibility and scalability, allowing your business to adapt to evolving communication needs effortlessly.