Linphone softphone and Flexisip server provide strong built-in security features,
based on open standards and state-of-the-art end-to-end encryption.
Strong built-in security features
Welcome to the in-depth exploration of our transformative journey with Josefin Bakon, a prominent
player in the e-commerce industry. Discover how Zylivo's digital expertise reshaped the
landscape of online retail, turning challenges into triumphs.
In collaboration with Josefin Bakon, Zylivo embarked on a mission to redefine their e-commerce
platform. The goal was to enhance user experience, streamline processes, and ultimately boost
online sales.
Secure user authentication and call setup
Welcome to the in-depth exploration of our transformative journey with Josefin Bakon, a prominent
player in the e-commerce industry. Discover how Zylivo's digital expertise reshaped the
landscape of online retail, turning challenges into triumphs.
Verification of the SIP server authenticity based on x509 certificates
Verification of the user identity, using either SHA 256 digest authentication or TLS client certificates
Secure connection between client (user) and server thanks to SIP TLS
End-to-end encryption for one-to-one and group messages
Welcome to the in-depth exploration of our transformative journey with Josefin Bakon, a prominent
player in the e-commerce industry. Discover how Zylivo's digital expertise reshaped the
landscape of online retail, turning challenges into triumphs.
Modern ciphering based on modern elliptic curves 448 and 25515
Perfect forward secrecy with double ratchet algorithm
Asynchronous messaging system based on pre-positioned keys
Man-in-the-middle detection based on ZRTP auxiliary secret
End-to-end encryption for audio and video calls
Welcome to the in-depth exploration of our transformative journey with Josefin Bakon, a prominent
player in the e-commerce industry. Discover how Zylivo's digital expertise reshaped the
landscape of online retail, turning challenges into triumphs.
Audio/Video packets encryption using AES 128-bit and 256-bit key length
State-of-the-art ciphering key exchange with ZRTP, using safe Elliptic Curves Diffie-Hellman (ECDH) X25519 and X448, and Short Authentication String (SAS) to prevent Man-in-the-middle attacks
WebRTC-compatible end-to-end encryption with DTLS-SRTP
Encrypted VFS (Encrypted Virtual File System) technology: all instant messages (text, documents, configuration data, etc.) are securely stored on the phone or desktop computer. This prevents a malicious application to access Linphone’s data.
Linphone application comprises specific views to visualize the received documents without the need to disclose them in clear-text to a third party application.
Choose robust client and server software solutions
To build your secure communications service, you can leverage our long-term expertise
on end-to-end encryption for IM and VoIP.
Deployable on several hosts, for scalability and high availability
On-premise, or in the cloud of your choice
Integrated with push notifications systems, to never miss an iOS or Android call
Installation and support services available
Strong built-in security features
Linphone softphone and Flexisip server provide strong built-in security features,
based on open standards and state-of-the-art end-to-end encryption.
Secure second zone
Secure user authentication and call setup
Verification of the SIP server authenticity based on x509 certificates
Verification of the user identity, using either SHA 256 digest authentication or TLS client certificates
Secure connection between client (user) and server thanks to SIP TLS
End-to-end encryption for one-to-one and group messages
Modern ciphering based on modern elliptic curves 448 and 25515
Perfect forward secrecy with double ratchet algorithm
Asynchronous messaging system based on pre-positioned keys
Man-in-the-middle detection based on ZRTP auxiliary secret
End-to-end encryption for audio and video calls
Audio/Video packets encryption using AES 128-bit and 256-bit key length
State-of-the-art ciphering key exchange with ZRTP, using safe Elliptic Curves Diffie-Hellman (ECDH) X25519 and X448, and Short Authentication String (SAS) to prevent Man-in-the-middle attacks
WebRTC-compatible end-to-end encryption with DTLS-SRTP
Encrypted VFS (Encrypted Virtual File System) technology: all instant messages (text, documents, configuration data, etc.) are securely stored on the phone or desktop computer. This prevents a malicious application to access Linphone’s data.
Linphone application comprises specific views to visualize the received documents without the need to disclose them in clear-text to a third party application.
Choose robust client and server software solutions
To build your secure communications service, you can leverage our long-term expertise
on end-to-end encryption for IM and VoIP.
Flexisip is a complete, modular and scalable SIP server suite comprising secure proxy and group chat functions. It offers all the features to deploy your own secure communications service tuned for mobile applications, out-of-the-box.
Deployable on several hosts, for scalability and high availability
On-premise, or in the cloud of your choice
Integrated with push notifications systems, to never miss an iOS or Android call
Installation and support services available
Your own value
We understand that you need to build your own value-added app to stay
at the forefront of secure communications technologies.
Dedicated support and customisation services
We offer dedicated annual support agreements, to ensure that your secure app stays compatible and compliant with the latest technologies.
Linphone is brandable and fully customisable. We can also develop specific security features on demand.
One cross-platform SDK for various kinds of UIs
Linphone features a separation bewteen the user interfaces and the core engine, allowing the creation of your own user interface.
Liblinphone SDK integrates all the voice, video and instant messaging functionalities with strong security features into a single easy-to-use API.
API plugin to add your own encryption engine
A custom encryption engine can easily be integrated without having to modify the library source code, as Liblinphone exposes APIs to enable customised code to process at all important stages.
Testimonials
Secure Communication Testimonials
We develop internally the source code of the full-stack software solution that we distribute,
which gives our customers full control of the solution that they chose.
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.”
Soren Sennels,
CEO
“With Linphone and Flexisip you get a good head start for developing secure VoIP solutions. We believe that an active community and active developers are the best means of ensuring that the products remain secure.”
Henrique Corrêa da Silva,
CEO
“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.”
Alber Arditi,
CEO
“Just because they know what they are doing. They are the masters of this subject.”
