diff --git a/res/values/arrays.xml b/res/values/arrays.xml
index a1f3a90..be6f9d4 100644
--- a/res/values/arrays.xml
+++ b/res/values/arrays.xml
@@ -56,5 +56,17 @@
         <item>@string/action_call_attended_transfer</item>
         <item>@string/action_call_conference</item>
     </string-array>
+    
+    <string-array name="srtp_entry_values">
+        <item>Deactivated</item>
+        <item>ZRTP</item>
+        <item>SDES</item>
+    </string-array>
+    
+    <string-array name="srtp_entry">
+        <item>Deactivated</item>
+        <item>ZRTP</item>
+        <item>SDES</item>
+    </string-array>
 
 </resources>
\ No newline at end of file
diff --git a/res/values/attrs.xml b/res/values/attrs.xml
index bf7c834..ee2f343 100644
--- a/res/values/attrs.xml
+++ b/res/values/attrs.xml
@@ -89,5 +89,19 @@
         <attr name="maxExternal" format="string" />
         <attr name="minExternal" format="string" />
     </declare-styleable>
+    <declare-styleable name="DoubleNumberPickerPreference">
+        <attr name="defaultValue1" format="integer" />
+        <attr name="defaultValue2" format="integer" />
+        <attr name="max1" format="integer" />
+        <attr name="min1" format="integer" />
+        <attr name="max2" format="integer" />
+        <attr name="min2" format="integer" />
+        <attr name="maxExternal1" format="string" />
+        <attr name="minExternal1" format="string" />
+        <attr name="maxExternal2" format="string" />
+        <attr name="minExternal2" format="string" />
+        <attr name="pickerTitle1" format="string" />
+        <attr name="pickerTitle2" format="string" />
+    </declare-styleable>
 
 </resources>
\ No newline at end of file