Your software solution for real-time communications
Open-source, secure, and developed in France since 2001.
A modular solution tailored to your needs
Whether you want to easily integrate call features into your products, design a custom softphone, or develop a complete, secure white-label communication solution, we have the software components you need. Our offering also caters to businesses and call centers looking for a turnkey unified communication solution.
Organizations
Explore our comprehensive software suite for business communications, including VoIP telephony, instant messaging, and video conferencing.
Developers and Admins
Discover our complete solution with SDK, server, and applications to create your own communication solutions using our software components.
Users
Use the Linphone app and service for free! A FAQ and community space are available to assist you.
The Linphone Suite
For businesses and public organizations
Discover how our complete software suite easily integrates with your information system to modernize your VoIP infrastructure, while addressing the new challenges of remote work and securing communications.
Softphone
Instant Messaging
Video Conferencing
Secure Communications
White-label Softphone, SDK, and SIP Server
For Developers and Network Administrators
Our modular software suite provides all the essential tools to design your telecommunications solutions: develop your application with a modern VoIP SDK, use the intuitive interface of our Linphone softphone, or deploy a complete SIP network. We provide the components you need and support you with our tailored development and support services.
Linphone Softphone
Liblinphone SDK
Flexisip Server
Encryption modules
The Linphone Softphone
For desktop computers, smartphones, and soon in a web version!
A fully-featured softphone compatible with third-party VoIP platforms.
VoIP and IM application optimized for smartphones.
Cutting-edge secure communication solution.
Available in white-label, open-source, or proprietary license.
The Liblinphone SDK
The cross-platform library on which the Linphone softphone is based
Easy integration into your mobile and desktop applications.
Call quality, both audio and video: our core expertise.
Solution optimized for the embedded world.
The Flexisip Server
A modular server suite with account and configuration management features, call routing, chat, conferencing, and presence
A complete SIP server for real-time communications.
Particularly well-suited for deploying services with high user volumes and traffic.
Compatible with other SIP systems.
Integrable into small hardware.
Encryption modules
A set of libraries for end-to-end and post-quantum encryption of real-time communications
Implementation of the ZRTP protocol for end-to-end encryption of calls.
End-to-end encryption library for instant messaging.
End-to-end encryption solution for conferences.
Quantum-resistant encryption module.
Explore the space dedicated to our community
Join us: let's collaborate, share, and innovate together
This space is dedicated to the open-source community, individual users, and contributors. Take advantage of various resources and contribute to the improvement of our software projects.
Expertise
In telecommunications software, since 2001
Team
Of more than 20 engineers, based in France
Why trust us?
Services
Consulting, support, and custom development services
Open source
For greater transparency and security
Belledonne Communications
Découvrez l'entreprise derrière le projet Linphone !
Who are we?
A French open-source company specializing in real-time communications.
Founded in 2010 by Simon Morlat, the original creator of Linphone, and Jehan Monnier, our company specializes in the development of telecommunications software (VoIP, video calls, IM). We are the publisher of various open-source projects, including the Linphone softphone, the VoIP and IM SDK Liblinphone, and the Flexisip server suite.
Our mission is to help developers, integrators, and organizations leverage open-source VoIP standards to bring advanced audio and video features to their products. We provide a comprehensive solution for internet calls, messaging, and video conferencing.
White Papers
Learn more about our expertise in specific types of solutions.
Secure Communications
Intercom and Access Control
Discover our complete VoIP software solution for IP intercom and access control system manufacturers
We help manufacturers and developers of home automation systems leverage open VoIP standards, such as SIP, to integrate advanced audio and video features. With VoIP SIP technology, home automation systems can offer services such as receiving visitor notifications, video visualization, and voice or video interaction, anywhere there is a Wi-Fi or 3G/4G connection.
Check out our resources
Explore our content library to discover our conference replays, white papers, FAQs, and more
Presentation - Discover Linphone: the French solution for unified and secure communications!
Linphone: the unified, secure communication solution compatible with your VoIP infrastructure!
Presentation - Linphone, does it ring a bell?
We open our doors to discover the story of Linphone, our open-source unified communication project!
Contact us!
Do you have a project or specific need? Feel free to get in touch with our experts to help you find the solution that best fits your requirements.
Discover our latest news
Linphone Desktop 3.9 release
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In this release, the UI has been improved and you can find application enhancements Video recording of...
Get an exclusive preview: test the new Linphone Android beta!
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After more than a year dedicated to research and development, graphic design, and user experience optimization,...
