IMS: Send voice service class by default

When call barring requests are sent from UI for query
and set operations, use voice service class by default
similar to other supplementary service operations.

Test: Manual
Bug: 120119683
Change-Id: Ia92cd33fe4054d8d15c780c786ed3baf111c8a07
diff --git a/src/com/android/phone/CallBarringEditPreference.java b/src/com/android/phone/CallBarringEditPreference.java
index edff1e3..26a45d3 100644
--- a/src/com/android/phone/CallBarringEditPreference.java
+++ b/src/com/android/phone/CallBarringEditPreference.java
@@ -35,6 +35,7 @@
 import android.widget.TextView;
 import android.widget.Toast;
 
+import com.android.internal.telephony.CommandsInterface;
 import com.android.internal.telephony.CommandException;
 import com.android.internal.telephony.Phone;
 import com.android.internal.telephony.PhoneFactory;
@@ -116,7 +117,7 @@
         if (!skipReading) {
             // Query call barring status
             mPhone.getCallBarring(mFacility, "", mHandler.obtainMessage(
-                    MyHandler.MESSAGE_GET_CALL_BARRING), 0);
+                    MyHandler.MESSAGE_GET_CALL_BARRING), CommandsInterface.SERVICE_CLASS_VOICE);
             if (mTcpListener != null) {
                 mTcpListener.onStarted(this, true);
             }
@@ -235,7 +236,8 @@
             }
             // Send set call barring message to RIL layer.
             mPhone.setCallBarring(mFacility, !mIsActivated, password,
-                    mHandler.obtainMessage(MyHandler.MESSAGE_SET_CALL_BARRING), 0);
+                    mHandler.obtainMessage(MyHandler.MESSAGE_SET_CALL_BARRING),
+                    CommandsInterface.SERVICE_CLASS_VOICE);
             if (mTcpListener != null) {
                 mTcpListener.onStarted(this, false);
             }
@@ -374,7 +376,7 @@
                     "",
                     obtainMessage(MESSAGE_GET_CALL_BARRING, 0, MESSAGE_SET_CALL_BARRING,
                             ar.exception),
-                    0);
+                    CommandsInterface.SERVICE_CLASS_VOICE);
         }
     }
 }