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

License

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.

Documentation

• Supported features and RFCs : https://www.linphone.org/technical-corner/linphone/features
• Linphone public wiki : https://wiki.linphone.org/xwiki/wiki/public/view/Linphone/

How can I contribute?

Thanks for asking! We love pull requests from everyone. Depending on what you want to do, you can help us improve Linphone in various ways:

Help on translations

Top translations: linphone-ios

Interested in helping translate Linphone? Contribute on Transifex.

Report bugs and submit patchs

If you want to dig through Linphone code or report a bug, please read CONTRIBUTING.md first. You should also read this README entirely ;-).

How to be a beta tester ?

Enter the Beta :

• Download TestFlight from the App Store and log in it with your apple-id -Tap the public link on your iOS device. The public link : https://testflight.apple.com/join/LUlmZWjH -Touch View in TestFlight or Start Testing. You can also touch Accept, Install, or Update for Linphone app. -And voilà ! You can update your beta version with the same public link when a new one is available

Send a crash report :

• It is done automatically by TestFlight

Report a bug :

• Open Linphone
• Go to Settings —> Advanced —> Send logs
• An email to linphone-iphone@belledonne-communications.com is created with your logs attached
• Fill in the bug description with :
  • What you were doing
  • What happened
  • What you were expecting
  • Approximately when the bug happened
• Change the object to [Beta test - Bug report]
• Send the mail

Building the application

What's new

Now the default way of building linphone-iphone is to use CocoaPods to retrieve the linphone-sdk frameworks. Compared to previous versions, this project no longer uses submodules developper has to build in order to get a working app. However, if you wish to use a locally compiled SDK, read paragraph "Using a local linphone SDK" below to know how to proceed.

Building the app

If you don't have CocoaPods already, you can download and install it using :

	sudo gem install cocoapods

• Install the app's dependencies with cocoapods first:

	pod install

It will download the linphone-sdk from our gitlab repository so you don't have to build anything yourself.

• Then open linphone.xcworkspace file (NOT linphone.xcodeproj) with XCode to build and run the app.

Testing the application

We are using the Xcode test navigator to test the UI of Linphone.

Change the Scheme to LinphoneTester. Press the test navigator button and all the tests will show. See: https://developer.apple.com/library/archive/documentation/DeveloperTools/Conceptual/testing_with_xcode/chapters/05-running_tests.html

Limitations and known bugs

• Video capture will not work in simulator (not implemented in it).

Using a local linphone SDK

• Clone the linphone-sdk repository from out gitlab:

   git clone https://gitlab.linphone.org/BC/public/linphone-sdk.git --recursive

• Follow the instructions in the linphone-sdk/README file to build the SDK.

• Rebuild the project:

   PODFILE_PATH=<path to linphone-sdk-ios> pod install

where is your build directory of the linphone-sdk project, containing the linphone-sdk.podspec file and a linphone-sdk ouptut directory comprising built frameworks and resources.

• Then open linphone.xcworkspace with Xcode to build and run the app.

Enabling crashlythics

We've integrated Crashlythics into liphone-iphone, which can automatically send crash reports. It is disabled by default. To activate it:

• Replace the GoogleService-Info.plist for this project with yours (specific to your crashlytics account).

• Rebuild the project:

    USE_CRASHLYTHICS=true pod install

• Then open linphone.xcworkspace with Xcode to build and run the app.

Quick UI reference

• The app is contained in a window, which resides in the MainStoryboard file.

• The delegate is set to LinphoneAppDelegate in main.m, in the UIApplicationMain() by passing its class

• Basic layout:

    MainStoryboard
            |
            | (rootViewController)
            |
        PhoneMainView ---> view |--> app background
            |                   |
            |                   |--> statusbar background
            |
            | (mainViewController)
            |
        UICompositeView : TPMultilayout
                    |
                    |---> view  |--> statusBar
                                |
                                |--> contentView
                                |
                                |--> tabBar
  

When the application is started, the phoneMainView gets asked to transition to the Dialer view or the Assistant view. PhoneMainView exposes the -changeCurrentView: method, which will setup its Any Linphone view is actually presented in the UICompositeView, with or without a statusBar and tabBar.

The UICompositeView consists of 3 areas laid out vertically. From top to bottom: StatusBar, Content and TabBar. The TabBar is usually the UIMainBar, which is used as a navigation controller: clicking on each of the buttons will trigger a transition to another "view".