Samsung SPH-A680SSAQST - Manual (Page 38)

Section 2A: Your Phone - The Basics 30
Entering Numbers and Symbols
To enter numbers:
ᮣ Select the Number mode and press the appropriate key. (See
“Selecting a Character Input Mode” on page 28.)
To enter symbols:
ᮣ Select the Symbol mode. (See “Selecting a Character Input
Mode” on page 28.) To enter a symbol, press the appropriate
key indicated on the display.