Conversely, if an IMS client can receive a SIP instant message, process a SIP session set up request or process a SUBSCRIBE to any SIP event package (e.g. presence), an IMS application server can also do as well.
Note that "IMS service anthropomorphism" is not a standard or a commonly used term. I created it. You might therefore want to be careful and cite your source if if decide to use the term in discussions or in documents.