diff --git a/103221-1/TS_103_221_01.xsd b/103221-1/TS_103_221_01.xsd
index 490e9c4eb68f36c6bb328608b07571c4edf1ff71..54bf89c22a7ad111d956f422bf29d31b6a6c72b4 100644
--- a/103221-1/TS_103_221_01.xsd
+++ b/103221-1/TS_103_221_01.xsd
@@ -182,6 +182,7 @@
 			<xs:element name="gpsiMsisdn" type="etsi103280:GPSIMSISDN"/>
 			<xs:element name="gpsiNai" type="etsi103280:GPSINAI"/>
 			<xs:element name="eui64" type="etsi103280:EUI64"/>
+			<xs:element name="h248ContextId" type="H248ContextId"/>
 			<xs:element name="hashedIdentifier" type="hashedID:HashedIdentifier"/>
 			<xs:element name="targetIdentifierExtension" type="TargetIdentifierExtension"/>
 		</xs:choice>
@@ -207,6 +208,12 @@
 			<xs:maxInclusive value="4294967296"/>
 		</xs:restriction>
 	</xs:simpleType>
+	<xs:simpleType name="H248ContextId">
+		<xs:restriction base="xs:integer">
+			<xs:minInclusive value="0"/>
+			<xs:maxInclusive value="4294967296"/>
+		</xs:restriction>
+	</xs:simpleType>
 	<xs:simpleType name="CallPartyRole">
 		<xs:restriction base="xs:string">
 			<xs:enumeration value="Originating"/>
diff --git a/103221-1/examples/ActivateTaskRequestH248_example.xml b/103221-1/examples/ActivateTaskRequestH248_example.xml
new file mode 100644
index 0000000000000000000000000000000000000000..9bf5d0fd8d9237305dec5e70bfa45d1c07f907f8
--- /dev/null
+++ b/103221-1/examples/ActivateTaskRequestH248_example.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" ?>
+<ns1:X1Request xmlns:ns1="http://uri.etsi.org/03221/X1/2017/10" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <ns1:x1RequestMessage xsi:type="ns1:ActivateTaskRequest">
+    <ns1:admfIdentifier>admfID</ns1:admfIdentifier>
+    <ns1:neIdentifier>neID</ns1:neIdentifier>
+    <ns1:messageTimestamp>2017-10-06T18:46:21.247432Z</ns1:messageTimestamp>
+    <ns1:version>v1.11.1</ns1:version>
+    <ns1:x1TransactionId>3741800e-971b-4aa9-85f4-466d2b1adc7f</ns1:x1TransactionId>
+    <ns1:taskDetails>
+      <ns1:xId>29f28e1c-f230-486a-a860-f5a784ab9172</ns1:xId>
+      <ns1:targetIdentifiers>
+        <ns1:targetIdentifier>
+          <ns1:ipv4Address>198.51.100.1</ns1:ipv4Address>
+        </ns1:targetIdentifier>
+        <ns1:targetIdentifier>
+          <ns1:udpPort>55000</ns1:udpPort>
+        </ns1:targetIdentifier>
+        <ns1:targetIdentifier>
+          <ns1:h248ContextId>12345678</ns1:h248ContextId>
+        </ns1:targetIdentifier>
+      </ns1:targetIdentifiers>
+      <ns1:deliveryType>X3Only</ns1:deliveryType>
+      <ns1:listOfDIDs>
+        <ns1:dId>19867c20-8c94-473e-b9cd-8b72b7b05fd4</ns1:dId>
+      </ns1:listOfDIDs>
+    </ns1:taskDetails>
+  </ns1:x1RequestMessage>
+</ns1:X1Request>