Formal feedback in response to the attention request to the requesting user is not specified, and so the request might be silently dropped.
It is RECOMMENDED that a client accept message stanzas containing the attention extension only contacts that are in the user's roster or with whome the user's client is currently sharing directed presence, mainly to prevent the user from being annoyed by attention requests from random entities on the network. A client could implement finer-grained control if desired (e.g., allow attention requests only from entities in a particular roster group).
+It is RECOMMENDED that a client accept message stanzas containing the attention extension only contacts that are in the user's roster or with whom the user's client is currently sharing directed presence, mainly to prevent the user from being annoyed by attention requests from random entities on the network. A client could implement finer-grained control if desired (e.g., allow attention requests only from entities in a particular roster group).
This document requires no interaction with &IANA;.