diff --git a/telstra_apn_dual_stack.mobileconfig b/telstra_apn_dual_stack.mobileconfig
index bcde923..8028897 100644
--- a/telstra_apn_dual_stack.mobileconfig
+++ b/telstra_apn_dual_stack.mobileconfig
@@ -9,7 +9,7 @@
 			<array>
 				<dict>
 					<key>AllowedProtocolMask</key>
-					<integer>1</integer>
+					<integer>3</integer>
 					<key>AllowedProtocolMaskInRoaming</key>
 					<integer>1</integer>
 					<key>AuthenticationType</key>
@@ -23,7 +23,7 @@
 			<key>AttachAPN</key>
 			<dict> 
 				<key>AllowedProtocolMask</key>
-				<integer>1</integer>
+				<integer>3</integer>
 				<key>AuthenticationType</key>
 				<string>PAP</string>
 				<key>Name</key>