Apparatus and method for adding cordless handset capability to a

Details Apparatus and method for adding cordless handset capability to a Apparatus and method for adding cordless handset capability to a

1990-06-29

1991-04-23

Ng, Jin F.

Telephonic communications

Audio message storage, retrieval, or synthesis

379 58, H04M 1100

Patent

active

050105655

ABSTRACT:
An apparatus for adding cordless handset capability to an existing corded telephone is disclosed. A cordless handset replaces the corded handset of the existing corded telephone. The cordless handset includes a wireless transmitter, a wireless receiver, a battery to provide power to the cordless handset, and a battery charging connector. A cradle insert forms a substitute handset cradle over the original handset cradle of the corded telephone. The substitute handset cradle receives the cordless handset when it is not in use. Charging contacts are provided on the substitute handset cradle to charge the batteries of the cordless handset. The substitute cradle allows operation of the hook switch of the corded telephone when the cordless handset is placed into the substitute cradle.

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Telephony 3/30/87, p. 64, "Cellular Adapter", Cellular System.
Telephony 12/15/86, p. 62, #185.
Hattori, Sasaki, Momma, "Emerging Technology and Service Enhancement for Cordless Telephone System", IEEE Communications, vol. 26, #1, Jan. 1988.

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