How Do I Know If My Phone Is On 2.4Ghz History of Cordless Phones

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History of Cordless Phones

Phones have been the focal point of communication tools for many years. In 1870, after much trial and error, Alexander Graham Bell invented the telephone. The invention of the telephone, as it is called today, began with the transmission of speech electrically. Both the telegraph and the telephone are wire-based electronic systems. Mr. Bell’s efforts to perfect the telegraph resulted in the telephone. It is in high demand as it enables voice communication between two people. It was an unheard of phenomenon and people criticized it as much as they accepted it.

Phones are large and fixed devices and can only communicate between specific groups of people. Since then, phones have improved and look attractive, elegant and handy device. Engineers used lightweight and durable materials in an effort to make phones portable and efficient. By the 1950s, phones had become more efficient and less cumbersome.

A woman named Teri Paul invented the cordless phone in 1965. She is a professional jazz singer and came up with the idea to remove the wiring and make the handset wire free. Such a cordless phone operated at a low frequency of 47-49 MHz and only worked well in small areas. Advanced versions of high frequency cordless phones can work flawlessly in large spaces. The efficiency of high frequency phones is better than that of low frequency phones with better security as it becomes difficult to intercept calls.

The Federal Communications Commission or FCC granted permission to companies to manufacture 900 MHZ frequency phones by 1994. This move by the government has increased the demand for cordless phones. A frequency of 900 Mhz is ideal for scraping static caused by interference in signals by walls, appliances and other objects. They provide high quality sound output but are still listenable. To tighten security, the FCC allowed manufacturers to make phones with 2.4 GHZ and 5.8 GHZ frequencies.

These are secure cordless phones and cannot be intercepted by any radio scanner. High end cordless phones are primarily developed with the privacy of conversations in mind.

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