Phone Keypad Designer

DTMF technology started as a substitute for the circular line, in 1960, when the system was introduced on the keypad. These technologies have a key on the keyboard first to end the call or store up to two different frequencies simultaneously. A simple keypad design was created in a size 3 x 4, four horizontal rows and 3 keys in a single row. Numbers and letters are in the first 3 lines and asterisk keys are hit fourth.


3 x 4grid plan to each button contains the same numbers in words the general principles of three letters on each number. As the number 2 button has three letters, A, B, C, and 3 is D, E, F, in the same shop all the buttons are some of the letters and numbers. The function of these letters is to create e-mail and massages, and store phone numbers to remember, because time is passing the phone has started to be quite complex, because of their keyboards. As now a days mobile phone keypads have a full keyboard on the phone on the same computer, which creates a complication to enter the desired number.