4. Telephonic communications
  5. Plural exchange network or interconnection

Frederick R. Fix

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Arrangement for effecting segmentation of a dialed number

Telephonic communications – Supervisory or control line signaling – Substation originated
Patent

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Context-dependent call-feature selection

Telephonic communications – Special services – Anonymous party
Patent

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Dialed number recognition arrangement

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
Patent

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Dynamic routing-administration

Telephonic communications – Plural exchange network or interconnection – Connection call model
Patent

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Dynamic tone-administration

Telephonic communications – Special services – Anonymous party
Patent

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Profile ID: LFUS-PAI-P-87585

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