11. The apparatus according to claim 9 further comprising a display screen for displaying the characters mapped to each key of said keypad according to the mode of operation.
9. Apparatus for entering text in a mobile communications device comprising: a mobile communications keypad having a standard array of keys available for entering data; a memory for storing a list of the characters used in a language based on a Thai alphabet to be entered by using the standard array of keys of the mobile communications device, the memory storing said list divided into at least first and second groups; a microprocessor controller of the mobile communications device having computer executable code contained therein for mapping each of the alphabetic characters of the first group to the keys of the keypad and for mapping each of the alphabetic characters of the second group to the keys of the keypad; a dedicated key for selectably switching the keypad between at least a first and second mode of operation; and wherein the microprocessor controller is adapted to switch the characters mapped to said keys between the first group and second group according to the first or second modes of operation respectively in response to operation of the dedicated switch; and wherein the first group is comprised only of consonant characters and the second group comprises only non-consonant characters.