Index: modules/core/src/main/java/org/jboss/ws/extensions/wsrm/RMClientSequence.java
===================================================================
--- modules/core/src/main/java/org/jboss/ws/extensions/wsrm/RMClientSequence.java	(revision 10499)
+++ modules/core/src/main/java/org/jboss/ws/extensions/wsrm/RMClientSequence.java	(working copy)
@@ -210,6 +210,10 @@
       return (this.addressableClient) ? this.backPort.toString() : ANONYMOUS_URI;
    }
 
+   public final void setAcksTo(URI uri) {
+      this.backPort = uri;
+   }
+   
    public final long newMessageNumber()
    {
       // no need for synchronization
Index: modules/core/src/main/java/org/jboss/ws/extensions/wsrm/RMSequence.java
===================================================================
--- modules/core/src/main/java/org/jboss/ws/extensions/wsrm/RMSequence.java	(revision 10499)
+++ modules/core/src/main/java/org/jboss/ws/extensions/wsrm/RMSequence.java	(working copy)
@@ -21,6 +21,7 @@
  */
 package org.jboss.ws.extensions.wsrm;
 
+import java.net.URI;
 import java.util.Set;
 
 /**
@@ -38,5 +39,6 @@
    long getLastMessageNumber();
    long getDuration();
    String getAcksTo();
+   void setAcksTo(URI uri);
    Set<Long> getReceivedInboundMessages();
 }
Index: modules/core/src/main/java/org/jboss/ws/extensions/wsrm/jaxws/RMHandlerHelper.java
===================================================================
--- modules/core/src/main/java/org/jboss/ws/extensions/wsrm/jaxws/RMHandlerHelper.java	(revision 10499)
+++ modules/core/src/main/java/org/jboss/ws/extensions/wsrm/jaxws/RMHandlerHelper.java	(working copy)
@@ -180,6 +180,12 @@
       RMCreateSequenceResponse createSequenceResponse = rmFactory.newCreateSequenceResponse();
       createSequenceResponse.setIdentifier(seq.getInboundId());
       createSequenceResponse.setExpires(RMHelper.longToDuration(seq.getDuration()));
+      if (seq.getAcksTo() != null)
+      {
+         RMCreateSequenceResponse.RMAccept a = createSequenceResponse.newAccept();
+         a.setAcksTo(seq.getAcksTo().toString());
+         createSequenceResponse.setAccept(a);
+      }
       return createSequenceResponse;
    }
    
Index: modules/core/src/main/java/org/jboss/ws/extensions/wsrm/server/RMInvocationHandler.java
===================================================================
--- modules/core/src/main/java/org/jboss/ws/extensions/wsrm/server/RMInvocationHandler.java	(revision 10499)
+++ modules/core/src/main/java/org/jboss/ws/extensions/wsrm/server/RMInvocationHandler.java	(working copy)
@@ -33,6 +33,7 @@
 import javax.xml.ws.addressing.AddressingProperties;
 import javax.xml.ws.addressing.JAXWSAConstants;
 import javax.xml.ws.addressing.Relationship;
+import javax.xml.ws.addressing.soap.SOAPAddressingProperties;
 
 import org.jboss.logging.Logger;
 import org.jboss.ws.core.CommonMessageContext;
@@ -150,6 +151,14 @@
       if (RMHelper.isCreateSequence(rmReqProps))
       {
          sequence = new RMServerSequence();
+         
+         // TODO: Find out how to get AcksTo address - here I reuse the incomming Addressing 'TO'
+         SOAPAddressingProperties clientInboundAddrProps = (SOAPAddressingProperties)msgContext.get(JAXWSAConstants.CLIENT_ADDRESSING_PROPERTIES_INBOUND);
+         if (clientInboundAddrProps != null && clientInboundAddrProps.getTo() != null)
+         {
+            sequence.setAcksTo(clientInboundAddrProps.getTo().getURI());
+         }
+         
          RMStore.serialize(dataDir, sequence);
          protocolMessages.add(rmConstants.getCreateSequenceResponseQName());
          rmResponseContext.put(RMConstant.SEQUENCE_REFERENCE, sequence);
Index: modules/core/src/main/java/org/jboss/ws/extensions/wsrm/server/RMServerSequence.java
===================================================================
--- modules/core/src/main/java/org/jboss/ws/extensions/wsrm/server/RMServerSequence.java	(revision 10499)
+++ modules/core/src/main/java/org/jboss/ws/extensions/wsrm/server/RMServerSequence.java	(working copy)
@@ -27,6 +27,7 @@
 import java.io.IOException;
 import java.io.ObjectInputStream;
 import java.io.ObjectOutputStream;
+import java.net.URI;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.Map;
@@ -55,6 +56,7 @@
    private String inboundId;
    private String outboundId;
    private long creationTime;
+   private URI backPort;
    private long duration;
    private Set<Long> acknowledgedOutboundMessages = new TreeSet<Long>();
    private Set<Long> receivedInboundMessages = new TreeSet<Long>();
@@ -120,9 +122,21 @@
    
    public String getAcksTo()
    {
-      return null;
+      if (this.backPort != null)
+      {
+         return this.backPort.toString();
+      }
+      else
+      {
+         return null;
+      }
    }
 
+   public final void setAcksTo(URI uri)
+   {
+      this.backPort = uri;
+   }
+   
    public String getOutboundId()
    {
       return this.outboundId;