I solved this by the following
In
/var/lib/jbossas/server/production/deploy/jbossws.sar/jbossws.beans/META-INF/jboss-beans.xml
Commented the line
<property name="webServiceHost">{jboss.bind.address}</property>
So the config around this line now looks like
<!-- property name="webServiceHost"{jboss.bind.address}property -->
<property name="modifySOAPAddress">true</property>