diff --git a/Hacks.java b/Hacks.java
index 0eea6a814..5459bbd4b 100644
--- a/Hacks.java
+++ b/Hacks.java
@@ -30,9 +30,6 @@ public final class Hacks {
 		return isGT9000() || isSC02B();
 	}
 
-	public static boolean needGalaxySAudioHack() {
-		return isGalaxySOrTab();
-	}
 
 	public static boolean isGalaxySOrTabWithFrontCamera() {
 		return isGalaxySOrTab() && !isGalaxySOrTabWithoutFrontCamera();
@@ -93,10 +90,23 @@ public final class Hacks {
 		//sb.append("MANUFACTURER=").append(Build.MANUFACTURER).append("\n");
 		sb.append("SDK=").append(Build.VERSION.SDK);
 
-		Log.d(Version.TAG, sb.toString());
+		Log.i(Version.TAG, sb.toString());
 	}
 
 	public static boolean needSoftvolume() {
 		return isGalaxySOrTab();
 	}
+
+	public static boolean needRoutingAPI() {
+		return Version.sdkStrictlyBelow(5) /*<donut*/;
+	}
+
+	public static boolean needGalaxySAudioHack() {
+		return isGalaxySOrTab() && !isSC02B();
+	}
+
+	public static boolean needPausingCallForSpeakers() {
+//		return false;
+		return isGalaxySOrTab() && !isSC02B();
+	}
 }
diff --git a/LinphoneCoreImpl.java b/LinphoneCoreImpl.java
index 9b374c0f8..32052f143 100644
--- a/LinphoneCoreImpl.java
+++ b/LinphoneCoreImpl.java
@@ -96,7 +96,9 @@ class LinphoneCoreImpl implements LinphoneCore {
 	private native void setSignalingTransportPorts(long nativePtr, int udp, int tcp, int tls);
 	private native void enableIpv6(long nativePtr,boolean enable);
 	private native void adjustSoftwareVolume(long nativePtr,int db);
-
+	private native int pauseCall(long nativePtr, long callPtr);
+	private native int pauseAllCalls(long nativePtr);
+	private native int resumeCall(long nativePtr, long callPtr);
 	LinphoneCoreImpl(LinphoneCoreListener listener, File userConfig,File factoryConfig,Object  userdata) throws IOException {
 		mListener=listener;
 		nativePtr = newLinphoneCore(listener,userConfig.getCanonicalPath(),factoryConfig.getCanonicalPath(),userdata);
@@ -472,4 +474,13 @@ class LinphoneCoreImpl implements LinphoneCore {
 		adjustSoftwareVolume(nativePtr, i);
 	}
 
+	public synchronized boolean pauseCall(LinphoneCall call) {
+		return 0 == pauseCall(nativePtr, ((LinphoneCallImpl) call).nativePtr);
+	}
+	public synchronized boolean resumeCall(LinphoneCall call) {
+		return 0 == resumeCall(nativePtr, ((LinphoneCallImpl) call).nativePtr);
+	}
+	public synchronized boolean pauseAllCalls() {
+		return 0 == pauseAllCalls(nativePtr);
+	}
 }