diff --git a/README.md b/README.md
index 1e4db54..8e8d52c 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
-# telstra_mobile_profile
+# Telstra Mobile Profile
+
+Apple mobile configuration documentation
+https://developer.apple.com/business/documentation/Configuration-Profile-Reference.pdf
 
-Custom Telstra mobile profile for iOS.
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diff --git a/telstra_apn_dual_stack.mobileconfig b/telstra_apn_dual_stack.mobileconfig
new file mode 100644
index 0000000..bcde923
--- /dev/null
+++ b/telstra_apn_dual_stack.mobileconfig
@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PayloadContent</key>
+	<array>
+		<dict>
+			<key>APNs</key>
+			<array>
+				<dict>
+					<key>AllowedProtocolMask</key>
+					<integer>1</integer>
+					<key>AllowedProtocolMaskInRoaming</key>
+					<integer>1</integer>
+					<key>AuthenticationType</key>
+					<string>PAP</string>
+					<key>DefaultProtocolMask</key>
+					<integer>1</integer>
+					<key>Name</key>
+					<string>telstra.internet</string>
+				</dict>
+			</array>
+			<key>AttachAPN</key>
+			<dict> 
+				<key>AllowedProtocolMask</key>
+				<integer>1</integer>
+				<key>AuthenticationType</key>
+				<string>PAP</string>
+				<key>Name</key>
+				<string>telstra.internet</string>
+			</dict>
+			<key>PayloadDescription</key>
+			<string>Configures cellular data settings</string>
+			<key>PayloadDisplayName</key>
+			<string>Cellular</string>
+			<key>PayloadIdentifier</key>
+			<string>com.apple.cellular.b8e80d56-c80f-4b2a-a6ad-ca8851c1edf7</string>
+			<key>PayloadType</key>
+			<string>com.apple.cellular</string>
+			<key>PayloadUUID</key>
+			<string>b8e80d56-c80f-4b2a-a6ad-ca8851c1edf7</string>
+			<key>PayloadVersion</key>
+			<integer>1</integer>
+		</dict>
+	</array>
+	<key>PayloadDescription</key>
+	<string>Dual Stack with IPv4 and IPv6 for Telstra mobile devices.</string>
+	<key>PayloadDisplayName</key>
+	<string>Telstra Mobile Dual Stack</string>
+	<key>PayloadIdentifier</key>
+	<string>hhs-MacBook-Pro.D711ECCA-ED72-485C-A0F9-28A74BA333C7</string>
+	<key>PayloadRemovalDisallowed</key>
+	<false/>
+	<key>PayloadType</key>
+	<string>Configuration</string>
+	<key>PayloadUUID</key>
+	<string>5c83d813-fff2-4c04-b02f-a8ef83d17422</string>
+	<key>PayloadVersion</key>
+	<integer>1</integer>
+</dict>
+</plist>
\ No newline at end of file