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Line switching apparatus and method

Telephonic communications – Special services – Repetitive call attempts
Patent

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Local control of call features in a telephone system

Telephonic communications – Special services
Reexamination Certificate

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Local control of call features in a telephone system

Telephonic communications – Special services
Reexamination Certificate

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Local exchange subscriber line conferencing method

Telephonic communications – Special services – Service trigger
Reexamination Certificate

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Local number portability service saver

Telephonic communications – Special services – Service trigger
Patent

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Local on-hold information service with user-controlled...

Telephonic communications – Special services – Service profile
Reexamination Certificate

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Local routing management in a telecommunications network

Telephonic communications – Special services – Service profile
Reexamination Certificate

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Local routing management in a telecommunications network

Telephonic communications – Special services – Service profile
Reexamination Certificate

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Locale based call forwarding

Telephonic communications – Special services – Call diversion
Reexamination Certificate

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Locale based call forwarding with automated creation of new...

Telephonic communications – Special services – Call diversion
Reexamination Certificate

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Location-based forwarding

Telephonic communications – Special services – Call diversion
Reexamination Certificate

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Location-based ringbacks

Telephonic communications – Special services – Service trigger
Reexamination Certificate

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Long distance phone tag service

Telephonic communications – Special services – Call diversion
Patent

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Low cost migration to a VoIP system

Telephonic communications – Special services – Call diversion
Reexamination Certificate

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