Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-02-13
2010-06-01
Beamer, Temica M (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S432200, C455S434000, C455S435100, C455S435200
Reexamination Certificate
active
07729695
ABSTRACT:
Method and apparatus for updating roaming lists. An error handling message is provided when the roaming list protocols within the elements of a system are not compatible. A roaming list format identifier is provided to the remote user identifying the protocol version supported by the network. The roaming list format identifier acts to either request an old version of the protocol or request the current stored format at the remote user. In one embodiment, the old version is the Preferred Roaming List, and the new version is the Extended Preferred Roaming List.
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Beamer Temica M
Qualcomm Incorporated
Tam Kam T.
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