<iq to="ROOMNAME@conference.nimbuzz.com" type="set"><query xmlns="http://jabber.org/protocol/muc#owner"><x type="submit" xmlns="jabber:x:data"><field var="FORM_TYPE"><value>http://jabber.org/protocol/muc#roomconfig</value></field><field var="muc#roomconfig_roomname"><value>ROOMNAME</value></field><field var="muc#roomconfig_publicroom"><value>0</value></field><field var="muc#roomconfig_persistentroom"><value>0</value></field></x></query></iq>