Best Softphone Applications for Linux of 2026

Enhance your team's productivity with Yeastar Linkus, the premier softphone that transforms your mobile device, desktop, or web browser into a robust office extension. No matter if you're working remotely, out in the field, or traveling, Linkus guarantees that you stay connected and in control.

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.

Adversus features an integrated cloud softphone, enabling outbound sales representatives to initiate and answer calls straight from their web browser, eliminating the need for additional hardware or desk phones. This solution is tailored for high-volume outbound calling, offering rapid call management, automatic lead uploads, and organized processes for after-call tasks. Sales reps can concentrate on engaging with customers rather than handling administrative duties. It seamlessly integrates with CRM systems to record calls and synchronize data effortlessly. With a dependable infrastructure boasting over 99.97% uptime, it adheres to GDPR regulations and holds ISO certification, making it an excellent choice for both remote and on-site outbound teams.

VirtualPBX gives small businesses a complete, high-powered cloud phone system for $15/user/month with every feature already included. One simple plan. No contracts. No feature gates. Zero surprises. Just smarter voice engineering—whether teams operate at a desk, on the road, or remotely. Deploy AI FrontDesk for intelligent 24/7 call handling, and scale into advanced messaging capabilities as business needs evolve. Founded by the pioneers who invented cloud telephony in 1997, VirtualPBX backs every account with expert, U.S.-based support from specialists who genuinely understand small business. Having the right technology is critical—having the right technical team behind it levels the playing field.

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.

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 - AI Voice Agent and AI-speech recognition and analytics - 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.

Expand your reach, enhance engagement, and elevate the user experience with the leading VoIP Softphone available in the market. This customizable white label VoIP Softphone, fortified with WebRTC technology, offers unmatched convenience and effortless connectivity. Enjoy high-definition quality voice and video calls, perfect for spontaneous meetings or scheduled business conferences alike. Receive timely push notifications that do not impact device performance, ensuring you're always informed while optimizing battery usage with this robust VoIP Softphone application. Synchronize your objectives and aspirations with the versatile features of our WebRTC Softphone, tailored to meet your needs and branding through our white label SIP Softphone solution. This level of customization empowers businesses to provide a unique communication experience while maintaining high-quality service standards.

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.

Tragofone is a white-label VoIP softphone that supports WebRTC and auto provisioning. It's a great choice for business communication, anywhere and anytime. Tragofone is a great tool for remote work and providing a productive and efficient alternative to your workforce to provide outstanding customer service. Tragofone makes communication easy with just one simple step: configure SIP extensions on users’ smartphones and communication can occur on-the-go. This app allows for auto-provisioning. It is easy to set up and control. You can manage thousands of SIP accounts with SIP credentials, without having to access the phones. Tragofone provides exceptional communication by providing WebRTC support that ensures quality and security. Tragofone offers crystal-clear audio and video calling that makes communication easy.

Yeastar CloudPBX 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.

008 Agent is an innovative, open-source softphone that leverages AI and event-driven technology to transform VoIP communications. This platform allows users to initiate calls effortlessly, while automatically logging call events and interactions, and enabling seamless transfer of call data to preferred CRM systems and other tools. Among its features, it includes speech-to-text transcription, which facilitates the conversion of calls into written format for automatic export to CRMs or similar applications. Future enhancements will introduce sentiment analysis to track changes in caller emotions during conversations, summarization capabilities to distill vital information into easily digestible insights, and a programmable conversational agent powered by advanced language models like ChatGPT, enabling personalized and context-specific interactions. Supporting macOS, Windows, and Linux, along with web accessibility, 008 Agent serves as a highly adaptable solution suitable for a variety of professional environments. With its continuous updates and feature expansions, users can expect an increasingly robust and efficient communication tool that meets evolving business demands.

WaveKat Voice is an application for Mac and Linux that transforms your computer into a fully functional business phone line. By linking to your existing phone provider, such as Twilio, Telnyx, or 2talk, you can seamlessly make and receive calls directly from your laptop without needing additional hardware or a desk phone. The app remains discreetly in your menu bar, ready to alert you when a call comes in. All conversations are automatically recorded and stored as soon as you end the call, accompanied by a real-time transcript that allows you to focus on the discussion rather than taking notes. By default, calls, recordings, and transcripts are retained locally on your device; only if you log into a WaveKat account are your records synced to the cloud, enabling access from any location. Currently available for free during its public beta phase, WaveKat Voice is designed to be lightweight and prioritize user privacy, continuously updating itself in the background for your convenience. Its intuitive interface and robust features make it an ideal choice for professionals seeking a streamlined communication solution.

maaiiconnect makes customer engagement simple. It is the only cloud-based platform that combines digital and telecom communications to enable businesses to deliver seamless customer experiences. Be truly multichannel. You can centralize channels such as WhatsApp Messenger, Facebook Messenger, WeChat and Facebook Messenger, SMS and Virtual Numbers, Video Conferencing and a Web Communications Widget to Live Chat and Web calls into one place. This includes all customer information, CRM, ticketing system and rich insights.

PXO+ softphone features: (1) PXO+ is the best softphone for RTC (2) PXO+ has hundreds of configurable features and is very flexible (3) PXO+ is perfect for RTP and SIP feature testing (4) PXO+ supports more than 25 speech and audio codecs (5) PXO+ supports more than 8 video codecs (6) PXO+ provides scripting via VoiceXML (7) PXO+ works well for RTC QA and VoIP scenarios (8) STIR/SHAKEN

Pulse is a leading provider for call center solutions. Its Web Real-Time Communication enhances the efficiency of operations in call centers. With over two decades of experience in the call center industry, Pulse has helped clients in Pan India, Northern America and Europe to establish seamless customer interactions. Pulse's personalized call center solutions, which are equipped with advanced features, optimize the customer journey while maximizing revenue and loyalty. This allows businesses to meet customers' needs by providing them with a customized solution. These features encourage proactive customer engagement, and deliver exceptional user experience.

Ekiga, which was originally called GnomeMeeting, is a free and open-source application that provides SoftPhone, video conferencing, and instant messaging capabilities via the Internet. It offers high-definition sound and video quality comparable to that of DVDs. Utilizing the two main telephony standards, SIP and H.323, it ensures compatibility with a wide range of service providers along with various hardware and software solutions. The application made its debut in 2001 under its former name as part of a graduation project. At that time, technologies like voice over IP, IP telephony, and videoconferencing were still emerging and not widely adopted, unlike today. The GNU/Linux desktop environment was still developing, and multimedia functionalities were very limited. Many webcam drivers had significant issues, ALSA was yet to be introduced, and achieving full-duplex audio posed challenges. Performance was often a concern, particularly due to the prevalence of proprietary codecs. Despite these technological hurdles, Ekiga emerged as a pioneering solution! Its early introduction laid the groundwork for advancements in communication tools that we often take for granted today.

Siperb combines a contemporary WebRTC softphone compatible with various platforms (including Web, Windows, macOS, Linux, Android, and iOS) with a hosted WebRTC-to-SIP proxy, enabling teams utilizing Asterisk or FreeSWITCH to enjoy browser and mobile calling without the need to overhaul their existing PBX. Among its notable features are audio and video call recording, blind and attended transfers, three-way conferencing, and end-to-end encrypted media for enhanced security. The user interface for the client is open source under the AGPL-3.0 license, while the hosted proxy and mobile applications are proprietary. There is a free Personal tier available, while the Business tier costs £2 per user per month, and the Business Pro tier is priced at £5 per user per month, both of which offer additional storage, the ability for custom integrations, and future AI-driven enhancements. Overall, Siperb provides a flexible and secure solution for teams looking to modernize their communication tools without significant disruptions.