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The name ‘Belledonne′ originated from the name of a mountain range in the northern French Alps, near the city of Grenoble. Grenoble is sometimes referred to as the ‘French Silicon Valley′ due to the presence of many highly qualified engineers and a wide range of companies of different sizes working in the domains of electronics, nano-technologies and software services.
Belledonne Communications was founded in 2010 by Simon Morlat, the original author of Linphone, and Jehan Monnier, who worked for nine and ten years, respectively, in the telecom division of Hewlett Packard.
Since it was launched in 2001 as the very first open source application using SIP on Linux, Linphone has become very popular, especially within the open source community.
Our engineering team is continuously working on the Linphone project to support the latest versions of most popular platforms and to provide advanced Voice/Video and Instant Messaging features.
With more than 200 corporate customers worldwide, Linphone and its components are drivers of innovation in many sectors, including telecommunications, secure communications, social networking, home automation, telepresence, the IoT etc.
Our customer portfolio comprises a wide range of companies, from small start-ups to large global groups, and includes telecom operators, Mobile Virtual Network Operators (MVNOs), Over The Top (OTT) service providers, builders of intercom systems, secure app developers, IT software and service providers, and hardware manufacturers.
The following companies are some of our customers.
Beam Propulsion Lab Inc. offers a real-time communication application, called Beam Messenger, for instant typing and transmission of text.
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Alec Gordon, CEO of Beam Propulsion Lab Inc.: “We would recommend Belledonne Communications to our network due to the personal attention involved in helping us work out the technical challenges, and the rapid rate of response that has remained throughout.”
Acer Cloud Technology, Inc. is part of Acer Inc., a Taiwanese multinational hardware and electronics corporation specialising in advanced electronics technology.
Urmet S.p.A. is a communications and security specialist that designs, develops and sells building automation products and systems. Urmet specialises in a broad range of products that speed up installation and simplify function management for residential, office and industrial buildings, such as home automation, video door phones and door phone systems, telephony etc.
BarnardSoft Co. Ltd. is a Japanese software company specialising in the field of communications and networking that is developing network monitoring and VoIP-related systems.
Busch-Jaeger Elektro GmbH is a market leader with more than 130 years experience in the area of electrical installation technology. As part of the ABB Group, the company’s product scope goes from the complete electrical installation program to door communications systems and electronic and high-end products for building automation for smart homes and smart buildings.
CommuniTake Technologies Ltd crafts security, care and management solutions to provide people and businesses with better mobile use. CommuniTake delivers a comprehensive mobility platform that unifies highly secure device, smart Mobility Management, robust multi-channel support, and core Android Internet of Things.
BTicino S.p.A. proposes solutions for energy distribution and for the control of light and communication through intercom solutions. As part of the Legrand Group since 1989, and a world specialist in electrical and digital building infrastructures, BTicino creates innovative video door entry systems with a solution for any project.
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Mauro Sarchi, Project Leader at BTicino S.p.A.: "We searched for a VOIP solution that was suitable for mobile applications and Linux embedded, that is both mature for a real video door entry application and at the same time customisable for our needs. […] We are working with a very competent team, who are available to answer questions and give helpful tips and solutions".
Eloquant is a French SaaS software company and system integrator that provides telecom services for Customer Relationship centres. Eloquant provides a comprehensive software solution that can manage interactions and feedback.
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Bénédicte Bouché, R&D manager at Eloquant: "We chose Belledonne Communications because they are a leader for this particular telecom market. We appreciated regular deliveries and their very reactive support. They helped us manage a large number (hundreds) of phone calls in real time."
Amphitech is a French company that specialises in the development and manufacture of communication equipment, such as door entry phones, emergency call devices, call pillars and lift alarm systems. Amphitech also provides installation and maintenance services for telecommunication systems, IT networks and security equipment.
MegaLabs CJSC is a 100% subsidiary of MegaFon, a leading Russian telephone company. MegaLabs specialises in digital services such as content and media, financial services, cloud computing, mobile advertising, M2M and mHealth.
Libon is an all-in-one communications app for iPhone and Android, with features such as customised greetings for each contact, instant messages and free HD-quality calls to Libon contacts. Previously owned by Orange Vallée, the subsidiary in charge of innovation and development of the Orange Group, Libon SAS became independent in 2018.
PT. INVISION Astrindo Pratama is an Indonesian communication technology company, and one of the leading call centre application companies in the region. PT. Invision provides a complete range of advanced software solutions such as Interactive Voice Response, computer technology integration and voice recording systems.
PT. Invision chose Linphone and Flexisip to develop their multi-platform VoIP application.
Nettia OY is a Finnish company that has integrated Linphone into its VoIP application, Telz, in order to provide high quality and cheap international and local calls.
VTCSecure is an international technology company that creates and implements innovative forms of telecommunication, particularly for members of the disabled community. They have developed a solution based on Liblinphone that ensures equal and effective communications for all, and principally for the Deaf and Hard of Hearing community, by using Real-Time Text in their application.
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Peter Hayes, CEO: "The team helped us solve SIP call setup issues, codec issues and with the development of new features. Both the support and development assistance are great. It was easy to quickly add core functionality and to build on top of that."
Primo Connect Inc. is a global communications platform that focuses on delivering International Long Distance calling video and messaging, with a focus on not only app-to-app calling but on app-to-PSTN enablement as well.
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Jonathan Lin, General Manager of Primo connect: “We selected Belledonne Communications because of their expertise in the voice and video communications market and our partners have already been using them with great success for several years. We would be happy to recommend them.”
Axtel S.A.B. De C.V. is the second largest landline telephone service provider in Mexico and a relevant virtual private network operator. Belledonne Communications provides Axtel with various telecom server-side software technologies.
Based in the US, TextMe Inc. aims to offer rich mobile communication (text, calls and mobile data) for free to anyone in the world. In 2012, the TextMe app became the first application to offer SMS, rich messaging and voice and video calling, on both iOS and Android. The VoIP audio/video calling feature of the TextMe app is powered by the Liblinphone engine.
Bouygues Telecom is one of the leading telecom operators in France, offering phones, mobiles, fibre boxes, television, internet networking and recycling services.
TextPlus is a leading mobile communications service that lets anyone text, talk and share for free or cheaply. Its open network connects over 110 million people worldwide through a chart-leading app for iOS, Android and Windows smartphones and devices, including the iPod Touch and tablets.
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Samuel Braff, Vice President of TextPlus, Inc.: "The Belledonne support structure is world class! Since our initial integration efforts we’ve had close communication with their engineering team and support staff. Any problems we’ve had were quickly resolved or prioritized in upcoming releases. We couldn’t be happier!"
BT is one of the world’s leading communications services companies, serving the needs of customers in the UK and in more than 170 countries worldwide. BT’s main activities are the provision of fixed-line services, broadband, mobile and TV products and services, and networked IT services.
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Laurie Booton, Requirements Lead, Mobile Applications: "We have used support services and all were found to be fast and effective."
With the Yolla app, the Estonian company Yolla Calls International ÖÜ intends to change the way people communicate with others abroad. Since 2015, and with more than half a million users, Yolla has offered the possibility of calling any phone worldwide cheaply, regardless of whether or not the callee has the app.
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Olga Alp, Management Board Member: "We have evaluated some options and it seems like you have offered the best solution for us, with the support and assistance we needed and for an acceptable price. it is great that you offer such services and we really need your help with various technical issues we face once in a while."
Swisscom (Schweiz) AG is Switzerland’s leading telecoms company and one of its leading IT companies. In response to the high pressure faced by telecom operators, Swisscom capitalises on innovation to compensate for the decline in revenue while maintaining financial strength for a high level of investment in new technologies.
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"We chose Belledonne Communications because of their outstanding technology knowledge around voice over IP and Media Engine. In addition, they have by far the best quality-price ratio on the current market."
A2 TECH Inc., a US-based corporation, develops Lockfone and Coponi VoIP mobile applications, which provide confidential communication with military grade security. A2 Tech chose the Belledonne Communications team because of its achievements in the fields of cryptography, compression and telecommunications.
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Alber Arditi, CEO of A2 TECH Inc.: "Just because they know what they are doing. They are the masters of this subject."
Created in 1997, Taiwan Mobile Corporation is now the third largest mobile phone operator based in Taiwan. It has developed the successful application M+ Messenger for iOS and Android.
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"The reasons that motivate us to select their software are as follows: excellent quality of software and premium technical support."
Dencrypt APS works within the field of encrypted communication, and offers solutions for securing mobile communications against eavesdropping. This Danish company specialises in developing and providing software products based on the principle of Dynamic Encryption, and focuses on combining encryption technology with a user-friendly operation.
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Soren Sennels, CEO of Dencrypt: "With Linphone and Flexisip you get a good head start for developing secure VoIP solutions. The ZRTP protocol is supported out of the box. Furthermore, when working with secure VoIP systems, it is very important that vulnerabilities and security issues are identified and corrected. We believe that an active community and active developers are the best means of ensuring that the products remain secure."
Cybernetica is a research and development intensive ICT company that develops and sells mission-critical software systems and products, maritime surveillance and radio communications solutions.
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Haavel Rein, head of Department: "We needed a complete library kit (SIP, RTP, codecs) to implement telephone communication functionality in our software […]. Linphone proved to be very stable.
Support by email works well, responses are fast and comprehensive. The fix is short, elegant, and the quality of code is quite high."
Privus is a Swiss-based company with broad experience in real-world digital surveillance. In response to the urgent need to bring privacy back under the control of the individual, Privus develops full-spectrum, user-friendly solutions that guarantee the security and privacy of all digital communications.
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Henrique Corrêa da Silva, CEO of Privus: “We have tested many VoIP stacks and libraries over the years, and Linphone was our first choice for SecurLine due to the quality, modularity and transparency of its code.”
Thales Group is a multinational company that designs and builds electrical systems and provides services for the Aerospace, Defence, Ground Transportation and Security markets. Offering world-class technology, with operations in 56 countries, Thales is a key player in keeping the public safe and secure and guarding vital infrastructures.
Go4Yu is a Serbian company that is partly owned by Telekom Serbia, the leading telecommunications operator in the Balkans, with offices in the USA, Canada and Austria. This company offers a Talk&Text app named Go4Yu Calling, together with fixed telephony services.
4Com PLC was founded in 1999 with the aim of improving the communications services of the UK’s SME market. Since then, the company has grown to over 300 people and currently provides 10,000+ UK businesses with phone systems.
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Jamie Hibard, Lead Developer at 4Com PLC: "After trying different SIP libraries and solutions for our Android project we came across Linphone, which offered more functionality than anything else available".
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