| 摘要 |
<p>A server device can receive availability inquiries from chat programs via a network. The server device determines a first user's availability to a second user based on whether that second user is a member of one of a set of groups identified by the first user. Based on the determination, the server device communicates information indicating the first user's availability to a chat program which displays an indicator, such as an icon, based on the information. Accordingly, a user can identify his availability to other users on a group-by-group basis, providing a flexible way for a user to target his interactions via the chat program to a limited group of users.</p> |
