| 摘要 |
The presence information of a presentity within a presence service includes a first presence attribute and a second presence attribute. The first presence attribute is published within the presence service only if at least one watcher within the presence service has subscribed to it, while the second presence attribute is published within the presence service regardless of whether any watcher has subscribed to it. A user interface may be provided to configure the publishing of presence information on an attribute-by-attribute basis. An exemplary user interface includes, for each presence attribute comprising the presence information, a user interface control (310,320) permitting selection of the publication mechanism for that presence attribute. The control (310,320) has a plurality of options including a first option (312,322) for causing the presence attribute to be published only if at least one watcher has subscribed to it and a second option (314,324) for causing the presence attribute to be regardless of whether any watcher has subscribed to it.
|
