Linphone is an open source softphone for voice and video over IP calling and instant messaging.
It is fully SIP-based, for all calling, presence and IM features.
General description is available from Linphone web site
Copyright © Belledonne Communications
Linphone is dual licensed, and is available either :
under a GNU/GPLv3 license, for free (open source). Please make sure that you understand and agree with the terms of this license before using it (see LICENSE file for details).
under a proprietary license, for a fee, to be used in closed source applications. Contact Belledonne Communications for any question about costs and services.
Here are the general instructions to build Linphone for desktop. The specific instructions for each build platform is described just below. You will need the tools :
cmake>= 3.15 : download it in https://cmake.org/download/
pip: it is already embedded inside Python, so there should be nothing to do about it
doxygen(required for the Cxx Wrapper)
pystache: use 'pip install pystache --user'
six: use 'pip install six --user'
For Desktop : you will need Qt5 (5.12 or newer).
C++11 support is required!
Set your environment
It's necessary to install the
pipcommand and to execute:
pip install pystache six
You have to set the environment variable
Qt5_DIRto point to the path containing the cmake folders of Qt5, and the
PATHto the Qt5
Note: If you have the third party tool
qtchooser installed :
eval "$(qtchooser -print-env)"
3. For specific requirements, see platform instructions sections below.
Summary of Building steps
`git clone https://gitlab.linphone.org/BC/public/linphone-desktop.git --recursive` `cd linphone-desktop` `mkdir build` `cd build` `cmake .. -DCMAKE_BUILD_PARALLEL_LEVEL=10 -DCMAKE_BUILD_TYPE=RelWithDebInfo` `cmake --build . --target install --parallel 10 --config RelWithDebInfo` `./OUTPUT/bin/linphone --verbose` or `./OUTPUT/Linphone.app/Contents/MacOS/linphone --verbose`
git clone https://gitlab.linphone.org/BC/public/linphone-desktop.git --recursive
Building : General Steps
The build is done by building the SDK and the application. Their targets are
Create your build folder at the root of the project :
mkdir buildGo to this new folder and begin the build process :
Prepare your options :
cmake ... By default, it will try compile all needed dependencies. You can remove some by adding
-DENABLE_<COMPONENT>=NOto the command. You can use
cmake-gui ..if you want to have a better access to them. You can add
<count>parallel builds for speeding up the process. Also, you can add
-DENABLE_BUILD_VERBOSE=ONto get more feedback while generating the project.
Note : For Makefile or Ninja, you have to add
-DCMAKE_BUILD_TYPE=<your_config> if you wish to build in a specific configuration (for example
- Build and install the whole project :
cmake --build . --target <target> --parallel <count>(replace
<target>with the target name and
<count>by the number of parallel builds).
Note : For XCode or Visual Studio, you have to add
--config <your_config> if you wish to build in a specific configuration (for example
When all are over, the files will be in the OUTPUT folder in the build directory. When rebuilding, you have to use
cmake --build . --target install (or
cmake --install .) to put the application in the correct configuration.
Binaries inside other folders (like
linphone-sdk) are not supposed to work.
When doing some modifications in the SDK, you can rebuild only the SDK with the target
sdkand the same for the application with
In order to get packages, you can use
cmake .. -DENABLE_APP_PACKAGING=YES. The files will be in
Update your project
Update your project with :
git fetch git pull --rebase
Update sub-modules from your current branch
git submodule update --init --recursive
Then simply re-build using cmake.
- The latest version of Doxygen may not work with the SDK. If you some build issues and have a specific version of Doxygen that is not in your PATH, you can use
Eg on Mac :
If the build of the SDK crash with something like "cmd.exe failed" and no more info, it can be a dependency that is not available. You have to check if all are in your PATH. Usually, if it is about VPX or Decaf, this could come from your Perl installation.
If the application doesn't start and create an empty file with a random name, it could be come from a bad configuration between your application and others sub-modules. Check your configurations and force them with
On Mac, the application can crash at the start from QOpenGLContext. A workaround is to deactivate the mipmap mode on images by adding into your configuration file (linphonerc):
Specific instructions for the Mac Os X platform
To install the required dependencies on Mac OS X, you can use Homebrew. Before you install packages with Brew, you may have to change directories permissions (if you can't change permissions with sudo on a MacOS >= High Sierra, get a look at this StackOverflow answer).
Install XCode from the Apple store. Run it at least once to allow it to install its tools. You may need to run :
Install Homebrew by following the instructions here https://brew.sh/
brew install cmake pkg-config git doxygen nasm yasm
First ensure you have pip
Then, you can install a pip package with the following command:
python -m pip install [package]
For instance, enter the following command:
python -m pip install pystache six graphviz
Download Qt, install a Qt5 version and set Qt5_DIR and PATH variables.
Qt5 is not available for arm64. If you are building on a arm64 system, you have to select the x86_64 processor on the generation stage of cmake :
Build as usual (General Steps).
If you get an error about modules that are not found for Python, it may be because cmake try to use another version from your PATH. It can be the case if you installed Python from brew. Install Python modules by using absolute path. For example:
/opt/homebrew/python3 -m pip install pystache six graphviz
Specific instructions for the Windows platform
64-bit version is not fully supported at this moment by Linphone Desktop and wasn't tested.
If a build for 64bits is needed, replace all
-A Win32 by
-A x64 or simply remove it.
- Install main tools:
- Follow instructions on their "Getting Started" page.
- Install toolchains and prepare python:
pacman -Sy --needed base-devel mingw-w64-i686-toolchain
pacman -S python3-pipin
python3 -m pip install pystache sixin
- In this order, add
C:\msys64\mingw32\binin your PATH (the last one is needed by cmake to know where gcc is) to the PATH environement variable from windows advanced settings.
When building the SDK, it will install automatically from MSYS2 :
andintltool` (if needed)
git: use MSYS2 :
pacman -S gitor download
Visual Studio must also be properly configured with addons. Under "Tools"->"Obtain tools and features", make sure that the following components are installed:
- Tasks: Select Windows Universal Platform development, Desktop C++ Development, .NET Development
- Under "Installation details". Go to "Desktop C++ Development" and add "SDK Windows 8.1 and SDK UCRT"
- Individual component: Windows 8.1 SDK
Ensure that you have downloaded the
Qt msvc2015 versionor
Qt msvc2017 version(32-bit).
Or open a Command line with Visual Studio
Developer Command Prompt for VS 2017and call qtenv2.bat that is in your qt binaries eg:
Build as usual with adding
cmake ..(General Steps) :
cmake .. -DCMAKE_BUILD_PARALLEL_LEVEL=10 -DCMAKE_BUILD_TYPE=RelWithDebInfo -A Win32The default build is very long. It is prefered to use the Ninja generator
cmake --build . --target ALL_BUILD --parallel 10 --config RelWithDebInfo
- The project folder will be in the build directory and binaries should be in the OUTPUT folder.
There are docker files configurations where dependencies can be retrieved.
Also, more configurations are available in the docker-files folder of linphone-sdk submodule.
|ENABLE_APP_LICENSE||Enable the license in packages.||YES|
|ENABLE_APP_PACKAGING||Enable packaging. Package will be deployed in
|ENABLE_BUILD_APP_PLUGINS||Enable the build of plugins||YES|
|ENABLE_BUILD_EXAMPLES||Enable the build of examples||NO|
|ENABLE_BUILD_VERBOSE||Enable the build generation to be more verbose||NO|
|ENABLE_DAEMON||Enable the linphone daemon interface.||NO|
|ENABLE_PQCRYPTO||Enable post quantum ZRTP.||NO|
|ENABLE_STRICT||Build with strict compilator flags e.g. -Wall -Werror||NO|
|ENABLE_TESTS||Build with testing binaries of SDK||NO|
|ENABLE_TOOLS||Enable tools of SDK||NO|
|ENABLE_UNIT_TESTS||Enable unit test of SDK.||NO|
|ENABLE_UPDATE_CHECK||Enable update check.||YES|
|ENABLE_APP_WEBVIEW||Enable webview for accounts. The Webview engine must be deployed, it takes a large size.||NO|
|LINPHONE_SDK_MAKE_RELEASE_FILE_URL||Make a RELEASE file that work along check_version and use this URL||""|
In order to submit a patch for inclusion in Linphone's source code:
First make sure that your patch applies to the latest Git sources before submitting : patches made to old versions can't and won't be merged.
Fill out and send the contributor agreement for your patch to be included in the Git tree by following links there. The goal of this agreement is to grant us the peaceful exercise of our rights to the Linphone source code, without losing your rights over your contribution.
Then go to the github repository and make a Pull Requests based on your code.
Please note that we don't offer free support and these contributions will be addressed on our free-time.
Linphone is getting a full internationalization support. We no longer use transifex for the translation process, instead we have deployed our own instance of Weblate. If you want you can contribute at: https://weblate.linphone.org/projects/linphone-desktop/
Feedback or bug reporting
Launch the application with
--verbose parameter to get full logs and send it with your request. You can use the "Send logs" button in settings to upload log files and share it by email or with a post in the corresponding Github project :
On some OS (like Fedora 22 and later), they disable Qt debug output by default. To get full output, you need to create
~/.config/QtProject/qtlogging.ini and add :
[Rules] *.debug=true qt.*.debug=false