diff --git a/src/org/linphone/IncallActivity.java b/src/org/linphone/IncallActivity.java
index 5043818c5..04c40e0fd 100644
--- a/src/org/linphone/IncallActivity.java
+++ b/src/org/linphone/IncallActivity.java
@@ -152,7 +152,7 @@ public class IncallActivity extends AbstractCalleesActivity implements
 	
 	@Override
 	protected void onPause() {
-		IncallActivity.active = false;
+		setActive(false);
 		super.onPause();
 	}
 
diff --git a/src/org/linphone/LinphoneActivity.java b/src/org/linphone/LinphoneActivity.java
index 397eb8270..391b24e0f 100644
--- a/src/org/linphone/LinphoneActivity.java
+++ b/src/org/linphone/LinphoneActivity.java
@@ -422,9 +422,10 @@ public class LinphoneActivity extends TabActivity implements ContactPicked
 		}
 		mHandler.post(new Runnable() {
 			public void run() {
-				if (IncallActivity.instance() != null && IncallActivity.instance().isActive()) return;
+				if (IncallActivity.active) return;
 				Intent intent = new Intent().setClass(LinphoneActivity.this, IncallActivity.class);
 				startActivityForResult(intent, incall_activity);
+				IncallActivity.active = true;
 			}
 		});
 	}