diff --git a/src/org/linphone/DialerActivity.java b/src/org/linphone/DialerActivity.java
index 5fe8626c9..bed54dcdb 100644
--- a/src/org/linphone/DialerActivity.java
+++ b/src/org/linphone/DialerActivity.java
@@ -252,6 +252,7 @@ public class DialerActivity extends Activity implements LinphoneCoreListener {
 							mDisplayNameView.setText(lLinphoneCore.getRemoteAddress().getUserName());
 						}
 						configureMuteAndSpeakerButtons();
+						LinphoneActivity.instance().startProxymitySensor();
 						mWakeLock.acquire();
 					} 
 				}