System and method for providing POTS services in DSL...

Details System and method for providing POTS services in DSL... System and method for providing POTS services in DSL...

2006-05-23

2006-05-23

Taylor, Barry (Department: 2643)

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Of centralized switching system

C379S027010, C379S093090

Reexamination Certificate

active

07050546

ABSTRACT:
A system and method are presented for providing a telephone service. An analog signal is received from a telephone and the analog signal is converted into a digital signal in a first format. A modem is provided for receiving the digital signal in the first format. A digitizer is also provided for receiving the analog signal from the telephone. The system, in a first mode of operation, couples the digital signal in the first format to the modem, and in a second mode of operation, couples the analog signal from the telephone to the digitizer. The second mode of operation may be, for example, a power failure mode of operation.

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