Sony PCS-1600 Operating Instructions Manual page 34

How to Operate the Menu
To enter characters
Press the number buttons on the Remote Commander to enter
the desired character. Each time you press the button, the
character is input from among the alphabets on each button, or
the numbers on each.
To enter special characters (symbols), press the PHONE
BOOK (SYMBOL) button repeatedly to select a desired
character.
To copy the number
Press the CAMERA (LINE COPY) button on the Remote
Commander. The number in the box above is copied to the next
box.
To delete a character
Press the PinP (BACK SPACE) button on the Remote
Commander. The last entered character is deleted.
To delete all characters in a box
Move the cursor to the box where you want to delete the entry,
then press the STILL IMAGE (CLEAR) button on the Remote
Commander.
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Chapter 1 Preparation