Telephone handset with user-adjustable amplitude, default...

Details Telephone handset with user-adjustable amplitude, default... Telephone handset with user-adjustable amplitude, default...

2007-02-13

2007-02-13

Harold, Jefferey F. (Department: 2614)

Telephonic communications

Substation or terminal circuitry

Amplifying

C379S388030, C379S388060, C379S390010, C379S390030

Reexamination Certificate

active

09976217

ABSTRACT:
The present invention is directed to a telecommunication device, usable with standard telecommunication equipment, that automatically resets one or more acoustic parameters to predetermined levels prior to the initiation of the next communication session.

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patent: 02001036613 (2001-02-01), None
http://web.archive.org/web20010414083806/http://www.seniorshops.com/clarity1000.html, 1999.

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