diff --git a/103221-1/TS_103_221_01.xsd b/103221-1/TS_103_221_01.xsd
index d86c38f9e05723d55dd002ac19e7748878fb9ee1..1ad44810cccc653c14581883fe8bdec57b7323ca 100644
--- a/103221-1/TS_103_221_01.xsd
+++ b/103221-1/TS_103_221_01.xsd
@@ -182,9 +182,9 @@
             <xs:element name="internationalizedEmailAddress" type="etsi103280:InternationalizedEmailAddress"/>
             <xs:element name="sipUri" type="etsi103280:SIPURI"/>
             <xs:element name="telUri" type="etsi103280:TELURI"/>
-            <xs:element name="h323Uri" type="H323Uri"/>
-            <xs:element name="impu" type="Impu"/>
-            <xs:element name="impi" type="Impi"/>
+            <xs:element name="h323Uri" type="etsi103280:H323URI"/>
+            <xs:element name="impu" type="etsi103280:IMPU"/>
+            <xs:element name="impi" type="etsi103280:IMPI"/>
             <xs:element name="nai" type="etsi103280:NAI"/>
             <xs:element name="radiusAttribute" type="xs:hexBinary"/>
             <xs:element name="gtpuTunnelId" type="GtpTunnelId"/>
@@ -205,21 +205,6 @@
             <xs:element name="targetIdentifierExtension" type="TargetIdentifierExtension"/>
         </xs:choice>
     </xs:complexType>
-    <xs:simpleType name="H323Uri">
-        <xs:restriction base="xs:string">
-            <xs:pattern value="h323:[a-zA-Z0-9!#$&amp;-;=?-\[\]_~%]+"/>
-        </xs:restriction>
-    </xs:simpleType>
-    <xs:simpleType name="Impu">
-        <xs:restriction base="xs:string">
-            <xs:pattern value="[a-zA-Z0-9!#$&amp;-;=?-\[\]_~%]+"/>
-        </xs:restriction>
-    </xs:simpleType>
-    <xs:simpleType name="Impi">
-        <xs:restriction base="xs:string">
-            <xs:pattern value="[a-zA-Z0-9!#$&amp;-;=?-\[\]_~%]+"/>
-        </xs:restriction>
-    </xs:simpleType>
     <xs:simpleType name="GtpTunnelId">
         <xs:restriction base="xs:integer">
             <xs:minInclusive value="0"/>