User presence information communication system

An apparatus comprising a transmitting terminal including a presence engine, the transmitting terminal configured to:

• store presence information associated with at least one user, wherein the presence information comprises a plurality of parts, at least one of the parts comprises an application identifier identifying an application to which the at least one part is intended to be routed, wherein the at least one part of the presence information comprises a tuple, the tuple comprising information identifying the user and the application identifier identifying the application for which the at least one part is intended, and wherein the application identifier is registered with at least a presence server and associated with a specific application;
• receive a request from a watcher entity for only one or more parts of the plurality of parts of the presence information, wherein the one or more parts relate to the specific application of the watcher entity identified by the application identifier;
• and
• provide presence information associated with the at least one user to the watcher entity, wherein the apparatus is configured to provide the presence information in accordance with a session initiation protocol to the watcher entity in an internet protocol multimedia subsystem.

An apparatus comprising a receiving terminal including a watcher entity, the receiving terminal configured to at least:

• request from the watcher entity only one or more parts of a plurality of parts of presence information associated with a user, wherein the one or more parts relate to a specific application to which the one or more parts are intended to be routed, and wherein the one or more parts of presence information comprises a tuple, the tuple comprising information identifying the user and an application identifier, and wherein the application identifier is registered with at least a presence server and associated with the specific application;
• receive at the watcher entity the only one or more parts of presence information;
• and
• direct the one or more parts of the presence information that is received to the at least one application identified by the application identifier, wherein the receiving terminal is configured to receive the only one or more parts of presence information utilizing a session initiation protocol (SIP) in an internet protocol multimedia subsystem.