Block incoming SMS in CDMA Emergency Callback Mode

Block incoming SMS in CDMA Emergency Callback Mode

CDMA carriers expect that incoming SMS is not processed by phone while
it is in Emergency Callback Mode, so don't acknowlegde it to the network.

1 files changed, 13 insertions, 0 deletions

diff --git a/telephony/java/com/android/internal/telephony/cdma/CdmaSMSDispatcher.java b/telephony/java/com/android/internal/telephony/cdma/CdmaSMSDispatcher.java
index ecdc8f643b0d..c4db6098fd07 100644
--- a/telephony/java/com/android/internal/telephony/cdma/CdmaSMSDispatcher.java
+++ b/telephony/java/com/android/internal/telephony/cdma/CdmaSMSDispatcher.java
@@ -25,12 +25,14 @@ import android.database.Cursor;
 import android.database.SQLException;
 import android.os.AsyncResult;
 import android.os.Message;
+import android.os.SystemProperties;
 import android.provider.Telephony;
 import android.provider.Telephony.Sms.Intents;
 import android.preference.PreferenceManager;
 import android.util.Config;
 import android.util.Log;
 
+import com.android.internal.telephony.TelephonyProperties;
 import com.android.internal.telephony.CommandsInterface;
 import com.android.internal.telephony.SmsHeader;
 import com.android.internal.telephony.SmsMessageBase;
@@ -75,6 +77,11 @@ final class CdmaSMSDispatcher extends SMSDispatcher {
             return Intents.RESULT_SMS_GENERIC_ERROR;
         }
 
+        String inEcm=SystemProperties.get(TelephonyProperties.PROPERTY_INECM_MODE, "false");
+        if (inEcm.equals("true")) {
+            return Intents.RESULT_SMS_GENERIC_ERROR;
+        }
+
         // Decode BD stream and set sms variables.
         SmsMessage sms = (SmsMessage) smsb;
         sms.parseSms();
@@ -343,6 +350,12 @@ final class CdmaSMSDispatcher extends SMSDispatcher {
     /** {@inheritDoc} */
     protected void acknowledgeLastIncomingSms(boolean success, int result, Message response){
         // FIXME unit test leaves cm == null. this should change
+
+        String inEcm=SystemProperties.get(TelephonyProperties.PROPERTY_INECM_MODE, "false");
+        if (inEcm.equals("true")) {
+            return;
+        }
+
         if (mCm != null) {
             mCm.acknowledgeLastIncomingCdmaSms(success, resultToCause(result), response);
         }