Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2004-10-06
2009-06-02
Lee, John J (Department: 2618)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S425000, C455S067110, C455S069000
Reexamination Certificate
active
07542761
ABSTRACT:
Architecture that facilitates initiation of a user feedback signal during a telephone call when perceiving reduced voice quality. In response to receiving the feedback signal, the telephone network performs a number of measurements on the system and related to the user device that can be analyzed to determine the problem, and potentially resolve the problem. The feedback signal can be initiated by any number of user input means, including selection of a key or combination of keys on a cell phone keypad that generate signals which can be interpreted by the telephone network as the feedback signal, e.g., a DTMF signal.
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Amin Turocy & Calvin LLP
AT&T Mobility II LLC
Lee John J
LandOfFree
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