diff --git a/sample/app/src/main/java/org/linphone/sample/CallActivity.java b/sample/app/src/main/java/org/linphone/sample/CallActivity.java
index aa54854f9..e4c981749 100644
--- a/sample/app/src/main/java/org/linphone/sample/CallActivity.java
+++ b/sample/app/src/main/java/org/linphone/sample/CallActivity.java
@@ -7,6 +7,7 @@ import android.content.res.Configuration;
 import android.os.Bundle;
 import android.util.DisplayMetrics;
 import android.view.TextureView;
+import android.view.View;
 import android.widget.RelativeLayout;
 
 import androidx.annotation.Nullable;
@@ -42,7 +43,7 @@ public class CallActivity extends Activity {
         // Listen for call state changes
         mCoreListener = new CoreListenerStub() {
             @Override
-            public void onCallStateChanged(Core lc, Call call, Call.State state, String message) {
+            public void onCallStateChanged(Core core, Call call, Call.State state, String message) {
                 if (state == Call.State.End || state == Call.State.Released) {
                     // Once call is finished (end state), terminate the activity
                     // We also check for released state (called a few seconds later) just in case
@@ -51,6 +52,21 @@ public class CallActivity extends Activity {
                 }
             }
         };
+
+        findViewById(R.id.terminate_call).setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                Core core = LinphoneService.getCore();
+                if (core.getCallsNb() > 0) {
+                    Call call = core.getCurrentCall();
+                    if (call == null) {
+                        // Current call can be null if paused for example
+                        call = core.getCalls()[0];
+                    }
+                    call.terminate();
+                }
+            }
+        });
     }
 
     @Override
diff --git a/sample/app/src/main/java/org/linphone/sample/LinphoneService.java b/sample/app/src/main/java/org/linphone/sample/LinphoneService.java
index 5b933c9fd..6f0dad902 100644
--- a/sample/app/src/main/java/org/linphone/sample/LinphoneService.java
+++ b/sample/app/src/main/java/org/linphone/sample/LinphoneService.java
@@ -7,6 +7,7 @@ import android.content.pm.PackageManager;
 import android.os.Build;
 import android.os.Handler;
 import android.os.IBinder;
+import android.widget.Toast;
 
 import androidx.annotation.Nullable;
 
@@ -76,7 +77,9 @@ public class LinphoneService extends Service {
         // This will be our main Core listener, it will change activities depending on events
         mCoreListener = new CoreListenerStub() {
             @Override
-            public void onCallStateChanged(Core lc, Call call, Call.State state, String message) {
+            public void onCallStateChanged(Core core, Call call, Call.State state, String message) {
+                Toast.makeText(LinphoneService.this, message, Toast.LENGTH_SHORT).show();
+
                 if (state == Call.State.IncomingReceived) {
                     // For this sample we will automatically answer incoming calls
                     CallParams params = getCore().createCallParams(call);
diff --git a/sample/app/src/main/java/org/linphone/sample/MainActivity.java b/sample/app/src/main/java/org/linphone/sample/MainActivity.java
index 3d6298c84..e9a5c9dc9 100644
--- a/sample/app/src/main/java/org/linphone/sample/MainActivity.java
+++ b/sample/app/src/main/java/org/linphone/sample/MainActivity.java
@@ -5,11 +5,21 @@ import android.app.Activity;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
 import android.widget.ImageView;
+import android.widget.RadioButton;
+import android.widget.Switch;
+import android.widget.TextView;
+import android.widget.Toast;
 
 import androidx.annotation.Nullable;
 import androidx.core.app.ActivityCompat;
 
+import org.linphone.core.Address;
+import org.linphone.core.Call;
+import org.linphone.core.CallParams;
 import org.linphone.core.Core;
 import org.linphone.core.CoreListenerStub;
 import org.linphone.core.ProxyConfig;
@@ -22,6 +32,8 @@ public class MainActivity extends Activity {
     private ImageView mLed;
     private CoreListenerStub mCoreListener;
 
+    private EditText mSipAddressToCall;
+
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -37,6 +49,25 @@ public class MainActivity extends Activity {
                 updateLed(state);
             }
         };
+
+        mSipAddressToCall = findViewById(R.id.address_to_call);
+
+        Button callButton = findViewById(R.id.call_button);
+        callButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                Core core = LinphoneService.getCore();
+                Address addressToCall = core.interpretUrl(mSipAddressToCall.getText().toString());
+                CallParams params = core.createCallParams(null);
+
+                Switch videoEnabled = findViewById(R.id.call_with_video);
+                params.enableVideo(videoEnabled.isChecked());
+
+                if (addressToCall != null) {
+                    core.inviteAddressWithParams(addressToCall, params);
+                }
+            }
+        });
     }
 
     @Override
diff --git a/sample/app/src/main/res/layout/call.xml b/sample/app/src/main/res/layout/call.xml
index 1ab7d6c83..498d59d25 100644
--- a/sample/app/src/main/res/layout/call.xml
+++ b/sample/app/src/main/res/layout/call.xml
@@ -16,4 +16,12 @@
         android:layout_alignParentRight="true"
         android:layout_alignParentBottom="true" />
 
+    <Button
+        android:id="@+id/terminate_call"
+        android:text="Terminate call"
+        android:layout_alignParentBottom="true"
+        android:layout_centerHorizontal="true"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content" />
+
 </RelativeLayout>
\ No newline at end of file
diff --git a/sample/app/src/main/res/layout/main.xml b/sample/app/src/main/res/layout/main.xml
index 1e335a2d6..42a3b7a6c 100644
--- a/sample/app/src/main/res/layout/main.xml
+++ b/sample/app/src/main/res/layout/main.xml
@@ -13,10 +13,41 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content" />
 
-    <ImageView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
+    <LinearLayout
+        android:id="@+id/call_layout"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
         android:layout_centerInParent="true"
-        android:src="@drawable/banner"/>
+        android:layout_margin="20dp"
+        android:gravity="center"
+        android:orientation="vertical">
+
+        <TextView
+            android:text="Enter SIP address"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" />
+
+        <EditText
+            android:id="@+id/address_to_call"
+            android:hint="SIP address"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" />
+
+        <Switch
+            android:id="@+id/call_with_video"
+            android:text="Call with video"
+            android:checked="true"
+            android:layout_marginTop="10dp"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" />
+
+        <Button
+            android:id="@+id/call_button"
+            android:text="Call"
+            android:layout_marginTop="10dp"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content" />
+
+    </LinearLayout>
 
 </RelativeLayout>
\ No newline at end of file