Panasonic KX-FP362BX Service Manual page 19

3.3.8.1. TO SELECT CHARACTERS WITH THE DIAL KEYPAD
Pressing the dial keys will select a character as shown below.
To select characters using [+] or [-]
Instead of pressing the dial keys, you can select characters
using [+] or [-].
1. Press [+] or [-] until the desired character is displayed.
2. Press [ ] to move the cursor to the next space.
· The character displayed in step 1 is inserted.
3. Return to step 1 to enter the next character.
Display order of characters
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KX-FP362BX