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Linphone Web 1.0 available today!

Linphone WebBelledonne Communications is proud to announce the launch of Linphone Web. Linphone Web is Belledonne Communication's latest innovation which leverages the SIP protocol to provide users the capability to make voice and video calls directly through web browsers.

Check out the demo and try Linphone Web today
Make VoIP calls directly from any web browsers!

Linphone Web is the latest of the Linphone product family which includes Linphone clients for iOS, Android and Desktop editions. The Linphone Web solution consists of :

  • The Liblinphone Web Plugin, a browser plugin bringing a JavaScript API similar to the Liblinphone API.
  • The Linphone Web User Interface (UI), a HTML/JavaScript layer relying on the plugin to offer to the end user the possibility to make audio and video calls through an easy and clever interface. This UI can be re-branded and integrated into a website aiming to provide video call experience.

Linphone Web promises to deliver a range of benefits:

  • Quick and easy to install
  • Simple and reliable to use
  • Supports all popular web browsers: Chrome, Internet Explorer, Mozilla Firefox and Safari
  • Proven track record: Linphone Web is based on the Liblinphone VoIP engine SDK, a library which has a proven track record since it was introduced on the market in 2010

The first version of Linphone Web includes the following capabilities:

  • Incoming and outgoing calls, audio and video
  • Call history
  • Possibility to connect with any SIP address
  • Audio codecs : G711, SPEEX, OPUS (G729, AMR, ILBC, SILK available on demands)
  • Video codecs : VP8 (MPEG4 and H264 available on demands)

Linphone Web, an alternative to WebRTC ?

The WebRTC project has drawn a lot of attention lately and we want to clarify how Linphone Web differentiates itself from WebRTC. Web-based Real Time Communications (WebRTC) is an open source project with the goal of permitting real-time communication using standard JavaScript APIs between web browsers without the need for a plug-in. WebRTC is currently facing two major issues:

  • Microsoft Internet Explorer and Apple Safari browsers don’t have defined strategies to support WebRTC.
  • WebRTC provides no interoperability with existing telephony networks. It requires add-ons of signaling protocols such as SIP as well as the development and installation of a gateways in order to fully inter-operate with existing telecom networks.


Linphone Web was designed to overcome all these issues. Unlike WebRTC, Linphone Web is based on standard communications protocols and fully SIP compliant. This means that Linphone Web does not require the addition of gateways to inter-operate with telecom networks.

A promising future

We believe that this is a wonderful engineering achievement that will ensure a promising future to web-based communication. This technology can also be an opportunity for operators who wish to provide an alternative to the OTT players with communications capabilities built in browsers.

The Linphone Web Plugin is distributed under the GPLv2 license or under proprietary license with commercial agreement. The Linphone Web UI is distributed under the Affero GPLv3 as well as proprietary license.Please contact us for more information.


Linphone for Windows Phone 8 !

Belledonne Communications is announcing today the launch of Linphone for Windows Phone 8.

Linphone for Windows Phone 8 is now available!

Over the last couple of months, Belledonne Communications was contacted by a large number of users and clients requesting Linphone's Windows Phone 8 support. After months of development and hard work, Belledonne Communications is happy to announce that is is launching today Linphone for this promising mobile operating system.

Like the audio versions of Linphone on Android and iOS, the first release of Linphone for Windows Phone 8is also based on the Liblinphone VoIP engine SDK.

The first release of Linphone for Windows Phone 8 includes the following features :

  • Audio incoming calls in background mode using push notifications
  • Audio outgoing calls
  • SIP transports: UDP, TCP, TLS
  • Call history and statistics
  • Pause, resume, mute, speaker
  • Exclusive BC's VoIP tunnel extension available
  • Echo cancellation
  • Chat (text and images)
  • Phone contacts integration


Linphone for WP8 is now available for all Windows Phone 8 smartphones and can be downloaded fromMicrosoft's Windows Store.

To enjoy the best experience with Linphone WP8, we recommend that users leverage the SIP service available for free at service, provided by Belledonne Communications, supports many exciting features including push-notified incoming calls.

How to get the source code ?

Linphone Windows Phone 8 is currently closed source but this app will become open in a near future. In the meantime, Belledonne Communications can provide the source code on demands after signing a Non Disclosure Agreement.

Linphone for Windows Phone 8 future improvements

Belledonne Communications would like to integrate video and presence features in the next Linphone WP8 releases and is looking forward to partnering with customers and clients that are interesting helping fund these projects. If you are interested, please don't hesitate to contact us!



Linphone now supports Bluetooth on Android!

The new release (version 2.1) of Linphone on Android introduces support for Bluetooth headset.

This new release also includes several improvements including:

  • Russian language support
  • Possibility to go to the history of missed call notifications
  • Support of PLC for iLBC codec



New release 3.6 for Desktop

Belledonne Communications announced today the new release of Linphone 3.6 for Windows Desktop, MAC OSX and Linux.

The new version 3.6 includes significant user interface improvements as well as new text messaging features such as delivery notifications and chat messaging storage.

Three new major core features are now supported by Linphone:

  • ICE support (RFC5245): allows peer to peer audio & video connections without media relay server
  • UPnP (Universal Plug and Play): allows device-to-device networking of personal computers, networked home appliances and wireless devices
  • Audio call and conference recording

Linphone 3.6 also integrates the following new features:

  • Call statistics
  • An improved buddy list management interface
  • Hebrew and Serb language support



Bluetooth on iOS !

Belledonne Communications today announced the new release of Linphone for iOS that supports Bluetooth headset.

This new version includes also various improvements like:

  • Russian translation
  • Possibility to go to the history from a missed call notification
  • Support PLC for iLBC codec

Various bugs have been fixed:

  • Fix issue with wrong IOUnit category being used causing a no audio issue
  • Fix video decline on iPad


Availability :

Linphone (the softphone) and Liblinphone (the SDK engine) sources are available with git at the following address:

The application Linphone 2.0 can be downloaded directly on the Appstore :


Screenshot :

Linphone supports Bluetooth on iOS










Linphone 2.0 for iPhone, iPad and Android

The new version V2.0  includes significant enhancements in the new ergonomic shape with a curved face interface, the integration of the address book and an account creation assistant...

Two major new core features have been added : a text messaging feature (chat) with delivery status notification and ICE support (RFC5246) to allow peer to peer audio & video connections without media relay server.

Also, Linphone integrates the new following features :

- Built in SIP account creation assistant coupled with our free SIP service on
- Rich call history-Integrated (in-app) settings for iOS
- Use of push notification (requires compatible SIP server) for more reliable incoming call or chat notification
- Display of advanced call statistics
- Low bandwidth mode: make audio calls over EDGE

Availability :

Linphone (the softphone) and Liblinphone (the SDK engine) sources are available with git at the following address:

The application Linphone 2.0 can be downloaded directly:

- on the Appstore :

- on Google Play:


G729 Codec

Belledonne Communications released bcg729, the first open-source G729 codec implementation written in C.

This new codec is now available in the Linphone product suite.

Read more information about bcg729.


Linphone supports video calls on IOS !

We just published on the Apple store a new release of Linphone for IOS that supports video calls.

Supported video codecs are VP8 (WEBM), H264 and mpeg4. Supported resolution is QVGA (320x240) at 12 fps.

This works on phones models using an ARMv7 processor with NEON instruction set (iPhone 3GS, iPhone 4/4S, iPad) starting from IOS 4.x. IOS 3.x is still supported but for audio only.

This new release also introduce some nice features like, SILK (Skype codec), multi calls and audio conferencing.


Linphone supports video calls on Android

We just published on the Android market a new release of linphone for android that supports video calls.

We just published on the Android market a new release of linphone for android that supports video calls.

Supported codecs are mpeg4 (320x240 @ 20 fps) and H264 (QCIF @ 7 fps), based on libavcodec and x264 open source projects.

This works on phones models using an ARMv7 processor with NEON instruction set (nexus, samsung galaxy, htc desire ...).


Linphone for Blackberry available !

After iOS and Android, it's now time for Blackberry to run Linphone !

The Linphone's team is pleased to release a new port of Linphone on Blackberry.

Linphone for BlackBerry OS is a completely java rewritten Linphone leveraging on the java version of libblinphone API we have developed for Android. A java port of oRTP called jortp has been developed. The core (I.E jliblinphone) is a strict implementation of the java version of linphonecore.

Main features are:

  • Audio only based on built-in AMR-NB codec, running with very low latency.
  • Native contact list integration.
  • Call history.
  • Both sip tcp and udp.
  • Limited supported device, Bold series with OS > 5.0 .
  • Both wifi and 3G support.
  • GNU GPL v2 license or proprietary license.