[ 21 ]Enter text and numbers7) Enter text and numbersNote: To enter characters quickly into a mobile message, see“Working with predictive text input” on page 65.• ENTER CHARACTERS(EXCEPT IN A PHONE NUMBER FIELD)Use the following guidelines when entering characters into any fieldexcept a phone number field (for example, the Name field in yourphone book, a note in your calendar, or a mobile message):Enter lettersTo enter a letter that appears on a key, press the key as many times asnecessary until the letter appears. For example, to enter the letter “a”, pressonce. To enter the letter “c”, press three times.Change letter case modeTo change the mode that controls whether letters you enter are uppercase(capital) or lowercase , press the pound key .Enter numbersTo enter one or just a few numbers, press the appropriate number keyas many times as necessary until the number appears. To enter manynumbers, it is easier to change to number entry mode (press and holdthe pound key .Erase charactersTo erase one character, position the cursor to the right of the character,then press Clear. To erase all displayed characters, press and hold Clear.Change between letter entry mode and numberentry modeTo change between letter entry mode ( / ) and number entry mode(123), press and hold the pound key .