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Method and apparatus for transmitting voice data in data packets with additional supplementary services Grant 6,621,814 - Korpi , et al. September 16, 2 | 2003-09-16 |
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Method and system for supporting wireless communications within an internetwork Grant 6,584,095 - Jacobi , et al. June 24, 2 | 2003-06-24 |
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Device and method for tracking time zone changes in communications devices Grant 6,198,696 - Korpi , et al. March 6, 2 | 2001-03-06 |
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