| 摘要 |
In order to manage a group of telecommunications devices (40), group information is distributed between the telecommunication devices using a SIP event notification framework, and particularly by a SIP PUBLISH method. The SIP PUBLISH method creates or modifies the group information. The group of devices form a peer-to-peer network. The devices may be mobile or cellular telecommunications devices. In a further aspect, content is shared between a first device (10) and a second device (20). A group of devices, including the first device (10) is established. The group is arranged such that the first device (10) is notified by a SIP NOTIFY message when the second device (20) wishes to join the group. In response to the SIP NOTIFY message, the first device (10) selectively provides the second device (10) with data enabling the content to be accessed by the second device (10). The first device (10) subscribes to the group as a "watcher" of the group members in order to receive the SIP NOTIFY message, whenever devices intend to join its group.
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