Cordless telephones, invented by Teri Pall in 1965, consist of a base unit that connects to the land-line system and also communicates with remote handsets by low power radio. This permits use of the handset from any location within range of the base. Because of the power required to transmit to the handset, the base station is powered with an electronic power supply. Thus, cordless phones typically do not function during power outages. Initially, cordless phones used the 1.7 MHz frequency range to communicate between base and handset.
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1965
A jazz musician named Teri Pall invented a version of the cordless phone in 1965 but could not market her invention as its two-mile range caused radio signals to interfere with aircraft. She sold her rights to the cordless phone in 1968 to a manufacturer who modified it for practical use.
The first cordless phone was invented in 1956 and was patented in 1959 by Dr. Raymond P. Phillips Sr. an African American inventor from Terrell, Texas
I believe the first wirless telephone was inventored by George Sweigert, he was an amateure radio operator and inventor Cleveland, Ohio. He is largely reconised as the father the cordless phone. He submitted a patent application in 1966 for a "full duplex wireless communications appartus".
Alexander Graham Bell is credited with inventing the corded telephone in 1876. However, it is said he stole the idea from Elisha Gray.
The inventor of the cordless phone is George Sweigert , who patented the first cordless phone in June 1966.
January 7th 2007
Robert E. Khan
A cordless phone?
You can purchase a cordless phone battery at Best Buy, Amazon.com, ebay.com, www.batteries4less.com/contents/Static/cordless-phone-batteries.html, etc. There are many options.
Cordless
A cordless phone twin is set up by , plugging the base into the wall and the phone jack , one then can plug in the cordless phone twin into any outlet and ones phones will be set up.
Some popular US cordless phone systems include AT&T, Motorola, Panasonic and VTech. Others who make the cordless phone systems are Clarity and Uniden.
Target and Best Buy both sell cordless phone sets. You can also find cordless phone sets online on the Amazon website, as well as on the eBay website.
Because they walk while talking on the cordless phone and the wire comes in the middle.
You can add up to 5 handsets to this Verizon cordless phone system.
The Panasonic DECT 6.0 Digital 5-Handset Cordless Phone is great.
How do you wall mount the Telstra 12350 DECT 6.0 cordless phone please
One can buy a DECT cordless phone at various places. DECT is an acronym for Digitally Enhanced Cordless Telecommunications, which is a digital communications standard for creating cordless phone systems. These phone can be bought on websites like Best Buy or Walmart or Amazon.
Cordless phone amplifies signals to and from phone-line interface, user controls and speaker phone. It broadcasts and receives radio signals to and from the handset.