| 摘要 |
A physical keyboard includes a plurality of multi-functional keys with a reduced column QWERTY key arrangement overlaid with a numeric phone key arrangement for use in both text entry and telephony. Another physical keyboard includes a plurality of multi- functional keys having an array of alphabetic characters and an overlaid numeric array of numbers. A handheld mobile station has a first user interface having a standard alphabetic key arrangement and a second user interface having a numeric phone key arrangement.
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