4. Telephonic communications
  5. Special services
  6. Call diversion

Charles E. Copeland

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Apparatus and method for CNG detection with call waiting

Telephonic communications – Special services – Call waiting
Reexamination Certificate

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Internet priority call device

Telephonic communications – Reception of calling information at substation in wireline... – Call waiting associated with caller id information
Reexamination Certificate

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Telephone call screening device with power and telephone...

Telephonic communications – Special services – Call diversion
Reexamination Certificate

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Two line voice/data switch

Telephonic communications – Multi-line or key substation system with selective switching...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2106165

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