All Hail Hashtags! - The King of Social Media
[vc_row][vc_column][vc_column_text]Touch-tone telephone service was first unveiled in 1963 and became available to consumers in 1964. A touch-tone phone could make a total of seven tones. The way it worked was, the user pushed one button which produced a combination of two sounds. Microphones hooked to a computer listened for the sounds and was able to decode the number. Two tones together were used because it made it easier for the computer to differentiate the sound from music, voices or background …