XMPP: Client Receives Notifications Only From Resource Bound

I'm building an XMPP client in Python. The client needs to get notifications from multiple pubsubs. During session initialization, the client must bind to a resource.

For example, the client could bind to pubsub.sales.

<body rid="34314915"
      sid="fe63566533334135bb2edf70b80a62743416b584"
      xmlns="http://jabber.org/protocol/httpbind">
  <iq id="KVwaFGvr+M53"
      type="set"
      xmlns="jabber:client">
    <bind xmlns="urn:ietf:params:xml:ns:xmpp-bind">
      <resource>pubsub.sales</resource>
    </bind>
  </iq>
</body>

When I do that, the client only gets messages from the resource to which it is bound. How can I get notifications from other pubsubs?

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