Radiotelephone- that is voice talking ( called Phone for short) . The term , with the advent of cellular phones, which are in a very real sense radiophones- has engendered some confusion. Before their advent (Phone) in Amateur Radio use meant voice conversation- called Radiotelephone. The other major transmission mode was of course CW- Continuous Wave- that is, Code transmission- or radiotelegraphy. As of now, there are, of course , different types of licenses for Phone, and Code transmission. Prior to l992 there was an arbitrary Code test for ALL prospective amateurs. This ( Model T) requirement has been modified if one is using only Phone. Still there are the CW zealots.
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Phone in Amateur Radio means using voice transmission or talking versus another mode of Amateur Radio communication such as CW (Morse Code).
In amateur radio, when someone asks what your QTH is, they are asking for your position, usually in latitude and longitude.
Korean Amateur Radio League was created in 1955.
International Amateur Radio Union was created in 1925.
They are asking if you acknowledge receipt or that they acknowledged receipt.
Radio Amateur Civil Emergency Service was created in 1952.