Patent attributes
Embodiments of the present invention provide a method for sharing presence information, including: acquiring group presence information and sending the group presence information to a group member. Embodiments of the present invention also provide a system and apparatuses for sharing presence information. The system includes a group presentity sub-system capable of acquiring the group presence information and sending the group presence information to the group member. The apparatuses include a group server, a presence server and a presence information management apparatus. With the method, system and apparatuses provided by the embodiments of the present invention, group members may conveniently share the presence information of each other, which also enriches the service functions of a single group service.