LandOfFree - US Patents - Listing for Telephonic communications

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

Device useful as a master/slave clock for transmitting standard

Telephonic communications – Subscriber line or transmission line interface – Power supply

Device which reduces central office battery current during...

Telephonic communications – Terminal – Housing or housing component

Device with a loudspeaker and an ear piece cover

Telephonic communications – Terminal – Housing or housing component

Devices and methods for acoustic usability

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

Devices for delivering information on their communications to su

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

Devices, methods and softwares for telecommunication service...

Telephonic communications – Supervisory or control line signaling – Signal receiver

Devices, software and methods for passing DTMF signals under...

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

Devices, softwares and methods for selectively limiting the...

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

Devices, softwares and methods for selectively limiting the...

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

Devices, softwares and methods for selectively limiting the...

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

Devices, systems, and methods for migration scheduling

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal

Diagnosing fault patterns in telecommunication networks

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of data transmission

Diagnostic channel wakeup sequence for network managed fractiona

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of network terminating interface – subscriber trunk...

Diagnostic checking of an inter-messaging network

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of data transmission

Diagnostic device for a telephone system

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal

Diagnostic device for troubleshooting remote digital feature pho

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal

Diagnostic mechanism for monitoring operational status of remote

Telephonic communications – With check operated control – Fraud or interference prevention

Dial assembly terminalgard

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

Dial inbound meter interface unit (MIU) for automatic meter read