Persian phonetic keyboard is for those interested to profit from their skill in typing with the English keyboard (or similar keyboards such as French and German) to type in Persian much faster. Regarding sounds having several characters in the Persian script (e.g. S's, Z's), the most frequent character is available on the normal state of the keyboard and the other characters are available on the Shift state (i.e. when you hold down the Shift key and press another key).
