Method and system for authentication information searching

Details Method and system for authentication information searching Method and system for authentication information searching

H - Electricity

04

L

H04L 12/28 (2006.01) H04Q 3/00 (2006.01) H04Q 3/47 (2006.01) H04Q 7/36 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2342561

In a mobile communication system, when a mobile visitor terminal registered at a first network enters a second network, it sends a registration signal to a first exchange belonging to the second network. The first exchange sends a roaming start request signal to the first network. On receiving authentication information from the first network, the exchange writes it in a VLR (Visitor Location Register) storage. On the origination of a call on the visitor terminal, call information is written to a call information storage. A third exchange stores in a VLR holding node number storage the fact that the call information is stored in the first exchange. when the visitor terminal moves to the area of a second exchange, the second exchange sees, based on the content of the VLR holding nude number storage, that the authentication information is stored in the first exchange, and obtains it. The second exchange switches connection thereto on the basis of the authentication information and call information.

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