4. Telephonic communications
  5. Special services
  6. Service trigger

Eddie L. Pickeral

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Apparatus and method for managing call billing records

Telecommunications – Radiotelephone system – Usage measurement
Reexamination Certificate

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Direct distance dialing (DDD) access to a communication...

Telephonic communications – With usage measurement – Call charge metering or monitoring
Reexamination Certificate

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Direct distance dialing (DDD) access to a communications service

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

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Flexible service access code (SAC)

Telephonic communications – Special services – Service trigger
Patent

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Method of and system for terminating calls to selected trunk gro

Telephonic communications – Special services – Service trigger
Patent

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Profile ID: LFUS-PAI-P-1564426

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