| 摘要 |
A communications system comprising a plurality of local area networks (LAN) within a wide area network (WAN). The mode of communication used in said LANs differs from the mode of communication within said WAN. One of the LANs comprises a home LAN which is associated with a user identity (e.g. a subscriber for that LAN in the communications system). The user identity is directly or indirectly also associated with a wide area network. The invention provides a method of configuring an alert to devices operated by other user identities which have performed a handover operation either into or from said home network of the subscriber. The alert is configured by said subscriber (e.g., by a user identity of the home network) either as a default to all 'visitors' or in dependence on one or more of the other user identities. In this way, each user identity visiting the subscriber's home network receives an alert which is capable of being specific to the visitor. The subscriber may select the form of alert to be provided to another user based individually on the other user's identity in the communications network or for a group of users. The method thus enables alerts to distinguish different users or groups of users. The form of alert provided may over-ride any personal preferences configured for the mobile communications devices of the visiting users. |
