| 摘要 |
An apparatus for retaining contact data for a subscriber to a mobile communication network comprising means for storing contact data for subscribers to a mobile network located within an area served by a mobile switching centre, means for receiving confirmation at the mobile switching centre (MSC) that a subscriber has left the area, means for updating the contact data to identify that the subscriber has left the area and means for retaining at least part of the contact data, the retained part of the contact data containing call forwarding details for the subscriber. If an incoming communication is expected for the subscriber, the step of retaining at least part of the contact data is performed in dependence on that and the mobile station roaming number is part of the retained contact data. The invention aims to address the problem of call dropping after the subscriber has left the MSC/VLR (visitor location register) and in particular at call set-up. |
