Method and apparatus for handling roaming lists in a...

Details Method and apparatus for handling roaming lists in a... Method and apparatus for handling roaming lists in a...

2006-02-14

2006-02-14

Beamer, Temica (Department: 2681)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S432200, C455S434000, C455S435100, C455S435200

Reexamination Certificate

active

06999762

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.

REFERENCES:
patent: 5613204 (1997-03-01), Haberman et al.
patent: 5999811 (1999-12-01), Molne
patent: 6044265 (2000-03-01), Roach, Jr.
patent: 6246875 (2001-06-01), Seazholtz et al.

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