Error from pubsub openfire instance

Hi folks,
I am trying to integrate my phone statuses update in the openfire using pubsub.
I can see in my pubsub tab of openfire that node SIP/1000 is present.
but on my phone side i receive the following error:

<iq type="error" id="aaajj" from="1000@mysipphone.com" to="1000@mysipphone.com/1000">
  <pubsub xmlns="http://jabber.org/protocol/pubsub">
    <create node="SIP/1000" />
    <configure>
      <x xmlns="jabber:x:data" type="submit">
        <field var="FORM_TYPE" type="hidden">
          <value>http://jabber.org/protocol/pubsub#owner</value>
        </field>
        <field var="FORM_TYPE" type="hidden">
          <value>http://jabber.org/protocol/pubsub#node_config</value>
        </field>
        <field var="pubsub#deliver_payloads">
          <value>1</value>
        </field>
        <field var="pubsub#persist_items">
          <value>1</value>
        </field>
        <field var="pubsub#access_model">
          <value>whitelist</value>
        </field>
      </x>
    </configure>
  </pubsub>
  <error code="409" type="cancel">
    <conflict xmlns="urn:ietf:params:xml:ns:xmpp-stanzas" />
  </error>
</iq>

Looks like the openfire is returning the error code 409. any idea what it could be ?
I am running latest openfire version by the way

Thanks

It looks like your phone tries to create a pubsub node (SIP/1000) that already exists. Should the phone instead be publishing to that node, maybe?

Hi Sir,
I deleted that node and now its not auto-created either.
Is there anyway we can create the pubsub node manually?

Thanks