linphone-android/app/src/main/res/navigation/call_nav_graph.xml

<?xml version="1.0" encoding="utf-8"?>
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/call_nav_graph"
    app:startDestination="@id/outgoingCallFragment">

    <fragment
        android:id="@+id/outgoingCallFragment"
        android:name="org.linphone.ui.call.fragment.OutgoingCallFragment"
        android:label="OutgoingCallFragment"
        tools:layout="@layout/call_outgoing_fragment">
        <action
            android:id="@+id/action_outgoingCallFragment_to_activeCallFragment"
            app:destination="@id/activeCallFragment"
            app:popUpTo="@id/outgoingCallFragment"
            app:popUpToInclusive="true"
            app:launchSingleTop="true"/>
        <action
            android:id="@+id/action_outgoingCallFragment_to_activeConferenceCallFragment"
            app:destination="@id/activeConferenceCallFragment"
            app:popUpTo="@id/outgoingCallFragment"
            app:popUpToInclusive="true"
            app:launchSingleTop="true" />
    </fragment>

    <action android:id="@+id/action_global_outgoingCallFragment"
        app:destination="@id/outgoingCallFragment"
        app:popUpTo="@id/outgoingCallFragment"
        app:popUpToInclusive="true"
        app:launchSingleTop="true" />

    <fragment
        android:id="@+id/incomingCallFragment"
        android:name="org.linphone.ui.call.fragment.IncomingCallFragment"
        android:label="IncomingCallFragment"
        tools:layout="@layout/call_incoming_fragment">
        <action
            android:id="@+id/action_incomingCallFragment_to_activeCallFragment"
            app:destination="@id/activeCallFragment"
            app:popUpTo="@id/incomingCallFragment"
            app:popUpToInclusive="true"
            app:launchSingleTop="true" />
        <action
            android:id="@+id/action_incomingCallFragment_to_activeConferenceCallFragment"
            app:destination="@id/activeConferenceCallFragment"
            app:popUpTo="@id/outgoingCallFragment"
            app:popUpToInclusive="true"
            app:launchSingleTop="true" />
    </fragment>

    <action android:id="@+id/action_global_incomingCallFragment"
        app:destination="@id/incomingCallFragment"
        app:popUpTo="@id/outgoingCallFragment"
        app:popUpToInclusive="true"
        app:launchSingleTop="true"/>

    <fragment
        android:id="@+id/activeCallFragment"
        android:name="org.linphone.ui.call.fragment.ActiveCallFragment"
        android:label="ActiveCallFragment"
        tools:layout="@layout/call_active_fragment">
        <action
            android:id="@+id/action_activeCallFragment_to_newCallFragment"
            app:destination="@id/newCallFragment"
            app:enterAnim="@anim/slide_in"
            app:popExitAnim="@anim/slide_out"
            app:launchSingleTop="true" />
        <action
            android:id="@+id/action_activeCallFragment_to_transferCallFragment"
            app:destination="@id/transferCallFragment"
            app:enterAnim="@anim/slide_in"
            app:popExitAnim="@anim/slide_out"
            app:launchSingleTop="true" />
        <action
            android:id="@+id/action_activeCallFragment_to_callsListFragment"
            app:destination="@id/callsListFragment"
            app:enterAnim="@anim/slide_in"
            app:popExitAnim="@anim/slide_out"
            app:launchSingleTop="true" />
        <action
            android:id="@+id/action_activeCallFragment_to_activeConferenceCallFragment"
            app:destination="@id/activeConferenceCallFragment"
            app:popUpTo="@id/activeCallFragment"
            app:popUpToInclusive="true"
            app:launchSingleTop="true" />
    </fragment>

    <action android:id="@+id/action_global_activeCallFragment"
        app:destination="@id/activeCallFragment"
        app:popUpTo="@id/activeCallFragment"
        app:popUpToInclusive="true"
        app:launchSingleTop="true"/>

    <fragment
        android:id="@+id/newCallFragment"
        android:name="org.linphone.ui.call.fragment.NewCallFragment"
        android:label="NewCallFragment"
        tools:layout="@layout/start_call_fragment" >
    </fragment>

    <fragment
        android:id="@+id/transferCallFragment"
        android:name="org.linphone.ui.call.fragment.TransferCallFragment"
        android:label="TransferCallFragment"
        tools:layout="@layout/start_call_fragment" >
    </fragment>

    <fragment
        android:id="@+id/callsListFragment"
        android:name="org.linphone.ui.call.fragment.CallsListFragment"
        android:label="CallsListFragment"
        tools:layout="@layout/calls_list_fragment" />

    <fragment
        android:id="@+id/endedCallFragment"
        android:name="org.linphone.ui.call.fragment.EndedCallFragment"
        android:label="EndedCallFragment"
        tools:layout="@layout/call_ended_fragment"/>

    <action android:id="@+id/action_global_endedCallFragment"
        app:destination="@id/endedCallFragment"
        app:launchSingleTop="true"/>

    <fragment
        android:id="@+id/activeConferenceCallFragment"
        android:name="org.linphone.ui.call.fragment.ActiveConferenceCallFragment"
        android:label="ActiveConferenceCallFragment"
        tools:layout="@layout/call_active_conference_fragment">
        <action
            android:id="@+id/action_activeConferenceCallFragment_to_activeCallFragment"
            app:destination="@id/activeCallFragment"
            app:popUpTo="@id/activeConferenceCallFragment"
            app:popUpToInclusive="true"
            app:launchSingleTop="true" />
        <action
            android:id="@+id/action_activeConferenceCallFragment_to_conferenceParticipantsListFragment"
            app:destination="@id/conferenceParticipantsListFragment"
            app:enterAnim="@anim/slide_in"
            app:popExitAnim="@anim/slide_out"
            app:launchSingleTop="true" />
        <action
            android:id="@+id/action_activeConferenceCallFragment_to_callsListFragment"
            app:destination="@id/callsListFragment"
            app:enterAnim="@anim/slide_in"
            app:popExitAnim="@anim/slide_out"
            app:launchSingleTop="true" />
    </fragment>

    <action android:id="@+id/action_global_activeConferenceCallFragment"
        app:destination="@id/activeConferenceCallFragment"
        app:popUpTo="@id/activeConferenceCallFragment"
        app:popUpToInclusive="true"
        app:launchSingleTop="true"/>

    <fragment
        android:id="@+id/conferenceParticipantsListFragment"
        android:name="org.linphone.ui.call.fragment.ConferenceParticipantsListFragment"
        android:label="ConferenceParticipantsListFragment"
        tools:layout="@layout/call_conference_participants_list_fragment"/>

</navigation>