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Laminar type telephone connector block

Telephonic communications – Centralized switching system – Structure of equipment
Patent

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Laminar type telephone protector block and interconnectable modu

Telephonic communications – Centralized switching system – Structure of equipment
Patent

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LAN connection using analog modems via telephone wiring

Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
Reexamination Certificate

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LAN interfaced facsimile machine

Telephonic communications – Telephone line or system combined with diverse electrical... – To produce visual-graphic copy
Patent

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LAN phone system with automatic fallback for power or...

Telephonic communications – Plural exchange network or interconnection – Multi-pbx interconnection
Reexamination Certificate

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Land mobile telephone system

Telephonic communications – Audio message storage – retrieval – or synthesis
Patent

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Language accommodated message relaying for hearing impaired call

Telephonic communications – Including aid for handicapped user
Patent

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Language for implementing telephony processing in end points

Telephonic communications – Audio message storage – retrieval – or synthesis – Multilingual system or operation
Reexamination Certificate

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Language selection for voice messaging system

Telephonic communications – Audio message storage – retrieval – or synthesis
Patent

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Latching relay drive circuit for use in telephone sets

Telephonic communications – Substation or terminal circuitry – Conversion of signal form
Patent

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Lawful intercept trigger support within service provider...

Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
Reexamination Certificate

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Lead line supervision system

Telephonic communications – Telephone line or system combined with diverse electrical... – To produce visual-graphic copy
Patent

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Leak-tolerant handsfree telephone

Telephonic communications – Terminal – Housing or housing component
Reexamination Certificate

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Learned speed dialing

Telephonic communications – Supervisory or control line signaling – Substation originated
Reexamination Certificate

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Least cost rooting system

Telephonic communications – With usage measurement – Call charge metering or monitoring
Patent

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Least cost router

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

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Least cost routing device for separate connection into phone lin

Telephonic communications – With usage measurement – Call traffic recording by computer or control processor
Patent

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Least cost routing method according to information transfer capa

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

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Least cost routing system

Telephonic communications – With usage measurement – Call charge metering or monitoring
Patent

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Least cost routing with repeated searches for lower cost route

Telephonic communications – With usage measurement – Call charge metering or monitoring
Patent

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