diff --git a/src/java/com/android/internal/telephony/PhoneBase.java b/src/java/com/android/internal/telephony/PhoneBase.java
index e037005..10711d1 100644
--- a/src/java/com/android/internal/telephony/PhoneBase.java
+++ b/src/java/com/android/internal/telephony/PhoneBase.java
@@ -2543,6 +2543,16 @@
         return getLocaleFromCarrierProperties(mContext);
     }
 
+    protected boolean isMatchGid(String gid) {
+        String gid1 = getGroupIdLevel1();
+        int gidLength = gid.length();
+        if (!TextUtils.isEmpty(gid1) && (gid1.length() >= gidLength)
+                && gid1.substring(0, gidLength).equalsIgnoreCase(gid)) {
+            return true;
+        }
+        return false;
+    }
+
     public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
         pw.println("PhoneBase: subId=" + getSubId());
         pw.println(" mPhoneId=" + mPhoneId);
diff --git a/src/java/com/android/internal/telephony/cdma/CDMAPhone.java b/src/java/com/android/internal/telephony/cdma/CDMAPhone.java
index 7501f05..f8a3c7b 100644
--- a/src/java/com/android/internal/telephony/cdma/CDMAPhone.java
+++ b/src/java/com/android/internal/telephony/cdma/CDMAPhone.java
@@ -959,7 +959,7 @@
                                 number = defaultVMNumberArray[0];
                             } else if (defaultVMNumberArray.length == 2 &&
                                     !TextUtils.isEmpty(defaultVMNumberArray[1]) &&
-                                    defaultVMNumberArray[1].equalsIgnoreCase(getGroupIdLevel1())) {
+                                    isMatchGid(defaultVMNumberArray[1])) {
                                 number = defaultVMNumberArray[0];
                                 break;
                             }
diff --git a/src/java/com/android/internal/telephony/gsm/GSMPhone.java b/src/java/com/android/internal/telephony/gsm/GSMPhone.java
old mode 100755
new mode 100644
index 3a3c963..4352301
--- a/src/java/com/android/internal/telephony/gsm/GSMPhone.java
+++ b/src/java/com/android/internal/telephony/gsm/GSMPhone.java
@@ -988,7 +988,7 @@
                                 number = defaultVMNumberArray[0];
                             } else if (defaultVMNumberArray.length == 2 &&
                                     !TextUtils.isEmpty(defaultVMNumberArray[1]) &&
-                                    defaultVMNumberArray[1].equalsIgnoreCase(getGroupIdLevel1())) {
+                                    isMatchGid(defaultVMNumberArray[1])) {
                                 number = defaultVMNumberArray[0];
                                 break;
                             }
@@ -1858,7 +1858,7 @@
                     ((configArray.length == 1 && configArray[0].equalsIgnoreCase("true")) ||
                         (configArray.length == 2 && !TextUtils.isEmpty(configArray[1]) &&
                             configArray[0].equalsIgnoreCase("true") &&
-                            configArray[1].equalsIgnoreCase(getGroupIdLevel1())))) {
+                            isMatchGid(configArray[1])))) {
                             isProhibited = true;
             }
         }