Samsung SGH-X507HBACIN - Manual (Page 67)

Section 6: Understanding Your Address Book 63
Management
Section 6
3. Select Service Number, by pressing the Up or Down
Navigation key and press the Select soft key or the
key.
4. Scroll through the numbers by using the Up or Down
Navigation key.
5. To dial the number displayed, press the key.
Note: This menu is available only when your SIM card supports Service
Dialing Numbers.