diff --git a/.gitignore b/.gitignore
index 298eb7f2a..eb9d115ee 100644
--- a/.gitignore
+++ b/.gitignore
@@ -50,3 +50,4 @@ WORK
 google-services.json
 gradle.properties
 .*clang*
+linphone.iml
diff --git a/linphone.iml b/linphone.iml
deleted file mode 100644
index c9ef74ce8..000000000
--- a/linphone.iml
+++ /dev/null
@@ -1,135 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id="linphone" external.linked.project.path="$MODULE_DIR$" external.root.project.path="$MODULE_DIR$" external.system.id="GRADLE" version="4">
-  <component name="FacetManager">
-    <facet type="android-gradle" name="Android-Gradle">
-      <configuration>
-        <option name="GRADLE_PROJECT_PATH" value=":" />
-      </configuration>
-    </facet>
-    <facet type="android" name="Android">
-      <configuration>
-        <option name="SELECTED_BUILD_VARIANT" value="debug" />
-        <option name="ASSEMBLE_TASK_NAME" value="assembleDebug" />
-        <option name="COMPILE_JAVA_TASK_NAME" value="compileDebugSources" />
-        <afterSyncTasks>
-          <task>generateDebugSources</task>
-        </afterSyncTasks>
-        <option name="ALLOW_USER_CONFIGURATION" value="false" />
-      </configuration>
-    </facet>
-  </component>
-  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_7" inherit-compiler-output="false">
-    <output url="file://$MODULE_DIR$/bin/intermediates/classes/debug" />
-    <output-test url="file://$MODULE_DIR$/bin/intermediates/classes/test/debug" />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/bin/generated/source/r/debug" isTestSource="false" generated="true" />
-      <sourceFolder url="file://$MODULE_DIR$/bin/generated/source/aidl/debug" isTestSource="false" generated="true" />
-      <sourceFolder url="file://$MODULE_DIR$/bin/generated/source/buildConfig/debug" isTestSource="false" generated="true" />
-      <sourceFolder url="file://$MODULE_DIR$/bin/generated/source/rs/debug" isTestSource="false" generated="true" />
-      <sourceFolder url="file://$MODULE_DIR$/bin/generated/source/apt/debug" isTestSource="false" generated="true" />
-      <sourceFolder url="file://$MODULE_DIR$/bin/generated/res/google-services/debug" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/bin/generated/res/rs/debug" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/bin/generated/res/resValues/debug" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/bin/generated/source/r/androidTest/debug" isTestSource="true" generated="true" />
-      <sourceFolder url="file://$MODULE_DIR$/bin/generated/source/aidl/androidTest/debug" isTestSource="true" generated="true" />
-      <sourceFolder url="file://$MODULE_DIR$/bin/generated/source/buildConfig/androidTest/debug" isTestSource="true" generated="true" />
-      <sourceFolder url="file://$MODULE_DIR$/bin/generated/source/rs/androidTest/debug" isTestSource="true" generated="true" />
-      <sourceFolder url="file://$MODULE_DIR$/bin/generated/source/apt/androidTest/debug" isTestSource="true" generated="true" />
-      <sourceFolder url="file://$MODULE_DIR$/bin/generated/res/rs/androidTest/debug" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/bin/generated/res/resValues/androidTest/debug" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/build-types/debug/res" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/build-types/debug/resources" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/build-types/debug/assets" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/build-types/debug/aidl" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/build-types/debug/java" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/build-types/debug/rs" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/build-types/debug/shaders" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/testDebug/res" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/testDebug/resources" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/testDebug/assets" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/testDebug/aidl" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/testDebug/java" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/testDebug/rs" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/testDebug/shaders" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/res" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/submodules/mediastreamer2/java/src" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/liblinphone-sdk/android-arm64/share/linphonej/java" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/android" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/assets" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/submodules/mediastreamer2/java/src" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/liblinphone-sdk/android-arm64/share/linphonej/java" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/android" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/main/shaders" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/res" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/submodules/mediastreamer2/java/src" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/liblinphone-sdk/android-arm64/share/linphonej/java" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/android" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/androidTest" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/assets" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/submodules/mediastreamer2/java/src" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/liblinphone-sdk/android-arm64/share/linphonej/java" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/android" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/androidTest" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/androidTest/shaders" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/res" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/resources" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/assets" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/aidl" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/rs" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/shaders" isTestSource="true" />
-      <excludeFolder url="file://$MODULE_DIR$/bin/android-profile" />
-      <excludeFolder url="file://$MODULE_DIR$/bin/intermediates/assets" />
-      <excludeFolder url="file://$MODULE_DIR$/bin/intermediates/blame" />
-      <excludeFolder url="file://$MODULE_DIR$/bin/intermediates/classes" />
-      <excludeFolder url="file://$MODULE_DIR$/bin/intermediates/incremental" />
-      <excludeFolder url="file://$MODULE_DIR$/bin/intermediates/incremental-safeguard" />
-      <excludeFolder url="file://$MODULE_DIR$/bin/intermediates/jniLibs" />
-      <excludeFolder url="file://$MODULE_DIR$/bin/intermediates/manifests" />
-      <excludeFolder url="file://$MODULE_DIR$/bin/intermediates/multi-dex" />
-      <excludeFolder url="file://$MODULE_DIR$/bin/intermediates/pre-dexed" />
-      <excludeFolder url="file://$MODULE_DIR$/bin/intermediates/res" />
-      <excludeFolder url="file://$MODULE_DIR$/bin/intermediates/rs" />
-      <excludeFolder url="file://$MODULE_DIR$/bin/intermediates/shaders" />
-      <excludeFolder url="file://$MODULE_DIR$/bin/intermediates/sourceFolderJavaResources" />
-      <excludeFolder url="file://$MODULE_DIR$/bin/intermediates/symbols" />
-      <excludeFolder url="file://$MODULE_DIR$/bin/intermediates/transforms" />
-      <excludeFolder url="file://$MODULE_DIR$/bin/outputs" />
-      <excludeFolder url="file://$MODULE_DIR$/bin/tmp" />
-    </content>
-    <orderEntry type="jdk" jdkName="Android API 26 Platform" jdkType="Android SDK" />
-    <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" exported="" scope="TEST" name="robotium-solo-5.6.3" level="project" />
-    <orderEntry type="library" exported="" name="firebase-core-11.4.0" level="project" />
-    <orderEntry type="library" exported="" scope="TEST" name="hamcrest-library-1.3" level="project" />
-    <orderEntry type="library" exported="" name="firebase-iid-11.4.0" level="project" />
-    <orderEntry type="library" exported="" scope="TEST" name="hamcrest-integration-1.3" level="project" />
-    <orderEntry type="library" exported="" scope="TEST" name="espresso-core-3.0.1" level="project" />
-    <orderEntry type="library" exported="" scope="TEST" name="espresso-idling-resource-3.0.1" level="project" />
-    <orderEntry type="library" exported="" name="support-core-ui-25.2.0" level="project" />
-    <orderEntry type="library" exported="" name="play-services-basement-11.4.0" level="project" />
-    <orderEntry type="library" exported="" name="objenesis-2.6" level="project" />
-    <orderEntry type="library" exported="" name="firebase-messaging-11.4.0" level="project" />
-    <orderEntry type="library" exported="" scope="TEST" name="jsr305-2.0.1" level="project" />
-    <orderEntry type="library" exported="" scope="TEST" name="runner-1.0.1" level="project" />
-    <orderEntry type="library" exported="" name="support-core-utils-25.2.0" level="project" />
-    <orderEntry type="library" exported="" name="support-fragment-25.2.0" level="project" />
-    <orderEntry type="library" exported="" scope="TEST" name="multidex-instrumentation-1.0.1" level="project" />
-    <orderEntry type="library" exported="" scope="TEST" name="javax.inject-1" level="project" />
-    <orderEntry type="library" exported="" scope="TEST" name="kxml2-2.3.0" level="project" />
-    <orderEntry type="library" exported="" name="support-v4-25.2.0" level="project" />
-    <orderEntry type="library" exported="" name="support-compat-25.2.0" level="project" />
-    <orderEntry type="library" exported="" scope="TEST" name="javawriter-2.1.1" level="project" />
-    <orderEntry type="library" exported="" name="multidex-1.0.1" level="project" />
-    <orderEntry type="library" exported="" scope="TEST" name="hamcrest-core-1.3" level="project" />
-    <orderEntry type="library" exported="" name="firebase-analytics-11.4.0" level="project" />
-    <orderEntry type="library" exported="" name="firebase-analytics-impl-11.4.0" level="project" />
-    <orderEntry type="library" exported="" name="support-media-compat-25.2.0" level="project" />
-    <orderEntry type="library" exported="" scope="TEST" name="junit-4.12" level="project" />
-    <orderEntry type="library" exported="" name="commons-compress-1.15" level="project" />
-    <orderEntry type="library" exported="" scope="TEST" name="rules-1.0.1" level="project" />
-    <orderEntry type="library" exported="" name="play-services-tasks-11.4.0" level="project" />
-    <orderEntry type="library" exported="" name="support-annotations-25.2.0" level="project" />
-    <orderEntry type="library" exported="" name="firebase-common-11.4.0" level="project" />
-  </component>
-</module>
\ No newline at end of file