Forward / RewindFast playing of the piece, using short audio clips, forward or reverse. Faster / SlowerChanges the speed of playing the audio, without changing the pitch. Can beuseful with voice memos, for example.Playing functions shall be available in the player’s menu of options. However, thenumeric keypad may also be used to control some of the functions.Text editingThis section describes the common principles of text editing, focusing on Latin basedscripts. Requirements of other writing systems and input methods, such as thoseused for Chinese or Arabic, are not covered in detail.Character input is accomplished using the numeric keys. The ITU-T standard fornumeric keypads specifies the mapping of Latin (English) characters to the keys,assigning three or four letters to each number key from 2 to 9. The input of a specificcharacter can happen either by repeated key presses within a time-out, or usingsome language-specific algorithm (such as T9 by Tegic) that tries to find correctcharacters according to the produced key sequence.Other keys have specific functions assigned to them during text editing:1 key Punctuation.Most used punctuation characters are availableusing repeated key presses within a time-out.* key In alpha mode, offers the next match in T9 input.In alpha mode, a long press opens a specialcharacter grid, where the complete set ofpunctuation and other characters are displayed. Onecharacter can be picked at a time.In number mode, produces the * character, repeatedpresses produce other characters allowed withinphone numbers: +, p, w# key In alpha mode, changes the character case(uppercase, lower case, text case).In number mode, produces the # character.C key Clears the previous character from cursor. In casemore characters are selected, clears all selectedcharacters.Edit key Press and release: opens an edit menu (seedescription below).77