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Technique for enhanced information assistance call routing

Telephonic communications – Special services – Automatic directory service
Reexamination Certificate

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Technique for providing information assistance while...

Telephonic communications – Special services – Automatic directory service
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Telephone directory assistance method and telephone...

Telephonic communications – Special services – Automatic directory service
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Toll-free call origination using an alphanumeric call initiator

Telephonic communications – Special services – Automatic directory service
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Unrecognized number identifier

Telephonic communications – Special services – Automatic directory service
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Web based personal directory

Telephonic communications – Special services – Automatic directory service
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