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MAIN MENU

 * Products
 * Solutions
 * Licensing & services
 * Technical corner
 * About us
 * News


MENU SOLUTIONS


SECURE COMMUNICATIONS

Leverage our long-term expertise on secure user authentication and end-to-end
encryption.


ALL USE CASES

Linphone and its components are divers of innovation in many sectors. Read our
white papers.


MENU TECHNICAL CORNER


LINPHONE

An open source SIP phone for voice/video calls and instant messaging (mobile and
desktop)


LIBLINPHONE

A high-level VoIP library implementing all SIP calling and IM features within a
single API


FLEXISIP

A SIP server implementation with proxy, presence and conference modules


FLEXISIP ACCOUNT MANAGER

A web API, provisioning server and admin platform for the creation and
management of user accounts


LIME

End-to-end encryption module for instant messaging, implementing the Signal
Protocol


POST QUANTUM ENCRYPTION

A Linphone extension providing Post Quantum Cryptography (using the
Crystals-KYBER algorithm)


MEDIASTREAMER2 & ORTP

A powerful voice/video streaming engine for telephony apps & a C library
implementing RTT Protocol


VOIP TUNNEL

A VoIP anti-blocking solution to overcome VoIP blocking and firewall
restrictions


BCG729

A fully portable C99 implementation of both an encoder and decoder for the G.729
A/B codec

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MAIN MENU

 * Products
 * Solutions
 * Licensing & services
 * Technical corner
 * About us
 * News

Newsletter



MENU TECHNICAL CORNER


LINPHONE

An open source SIP phone for voice/video calls and instant messaging (mobile and
desktop)


LIBLINPHONE

A high-level VoIP library implementing all SIP calling and IM features within a
single API


FLEXISIP

A SIP server implementation with proxy, presence and conference modules


FLEXISIP ACCOUNT MANAGER

A web API, provisioning server and admin platform for the creation and
management of user accounts


LIME

End-to-end encryption module for instant messaging, implementing the Signal
Protocol


POST QUANTUM ENCRYPTION

A Linphone extension providing Post Quantum Cryptography (using the
Crystals-KYBER algorithm)


MEDIASTREAMER2 & ORTP

A powerful voice/video streaming engine for telephony apps & a C library
implementing RTT Protocol


VOIP TUNNEL

A VoIP anti-blocking solution to overcome VoIP blocking and firewall
restrictions


BCG729

A fully portable C99 implementation of both an encoder and decoder for the G.729
A/B codec


MENU SOLUTIONS


SECURE COMMUNICATIONS

Leverage our long-term expertise on secure user authentication and end-to-end
encryption.


ALL USE CASES

Linphone and its components are divers of innovation in many sectors. Read our
white papers.


MAIN MENU

 * Products
 * Solutions
 * Licensing & services
 * Technical corner
 * About us
 * News


FOR SMARTPHONES, TABLETS AND DESKTOP PLATFORMS

- HD audio and video calling
- Audio/video meetings and group calling
- Secure communications with post quantum end-to-end encryption
- Instant messaging (IM), group chat and file sharing
- Interconnection with Apple's and Google's push notification systems
- Account creation and remote configuration (via QR code or URL)
- Fully SIP-based, for all calling, presence and IM features

Learn more



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A COMPLETE, SECURE AND INTEROPERABLE SIP SOFTWARE SOLUTION FOR COMMUNICATION
SYSTEMS DEVELOPERS

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and Instant Messaging
solutions in 3 minutes!





Solutions, resources and commercial offers 



ACCUEIL PROFIL

 * Enterprise(active tab)
 * Developers
 * Users


PRODUCTS

What is behind Linphone, and what software do you actually need? Discover the
whole software family that we develop and distribute.

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SOLUTIONS

Wondering how you can use Linphone, Liblinphone SDK or Flexisip server in your
own, specific VoIP project? Read common use cases and consult our white papers.

Learn more


LICENSING AND SERVICES

Undecided between open source or proprietary licenses, or need help with your
project? Learn about our licensing model and our available range of professional
services.

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COMPANY

Who are we and what do we do? Learn the story of the company behind the Linphone
project, see our team’s skills and read some of our references.

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DEVELOPER WIKI

Much more technical information is available, and most of the developer
guidelines are held in Linphone’s technical public wiki.

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WHITE PAPERS

Learn how to use Linphone and Flexisip to build your intercom system, your
secure VoIP solution or your social networking app.

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TECHNICAL CORNER

Access detailed technical information about our software applications, including
our software architecture, supported RFCs, API documentation, how to get the
source code and more.

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FEATURES

Linphone is an open source SIP phone that makes it possible to communicate
freely with people over the internet. Find out what it can do.

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FAQ

If you are in any doubt about how to start using Linphone and make the most of
all the available features, you can look for answers in our Frequently Asked
Questions.

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FREE SIP SERVICE

Create and manage your Linphone account (which means your own SIP address) to
start using Linphone and connect with your friends.

Learn more

Choose Liblinphone, the easiest way to bring advanced VoIP & IM features to
software applications or hardware products

 * Cross-platform
   
   A single SDK with abstraction of platform specificities, to develop your VoIP
   client for smartphones, tablets, desktop platforms and embedded systems

 * Multi-language
   
   Liblinphone offers APIs for various programming languages: C#, Java/Kotlin,
   Swift, C++ and C.

 * Easy-to-get
   
   Seamless integration with mobile platform IDEs thanks to our Maven repository
   and Cocoapods. SDK packages are available and source code is publicly shared.

 * Easy-to-use
   
   Thanks to our tutorials, public Wiki, and development assistance service.

 

READ MORE

Build your secure communications app with Linphone

 

 * Secure user authentication
   
   and call setup, with SHA-256 digest authentication or TLS client certificates

 * Secure voice & video calls
   
   based on ZRTP or SRTP-DTLS end-to-end encryption protocols, using AES 128-bit
   or 256-bit key length and safe Elliptic Curves Diffie-Hellman (ECDH) X25519
   and X448

 * Secure im and group chat (mobile only)
   
   with Linphone Instant Messaging Encryption (LIME), using modern ciphering
   curve X448 and double ratchet algorithm for perfect forward secrecy

 

READ MORE


WELCOME TO LINPHONE


LATEST NEWS


WE WILL BE AT OPENEXPO EUROPE

May

2024

Join us on June 13th, 2024, at OpenExpo Europe !

Read more


WE WILL BE AT OW2 CON'24

May

2024

We will be speakers on June 12th at 2:40 PM.

Read more


MIGRATE YOUR FLEXISIP SERVICE TO OTHER DISTRIBUTIONS

May

2024

The CentOS 7 Linux distribution will reach its end of life on June 30, 2024

Read more

More newsSubscribe

Contact our sales team to discuss your VoIP and IM projects.

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