You can store names and phone numbers in the Internal phone book (up to 300) and in the SIM phone book (SIM dependant, but a maximum of 250).
To access the phonebook
In idle mode:
• Press Menu then OK to select Phonebook.
Add a new phonebook entry
• Press Menu then Up / Down and OK to select Phonebook.
• Select Add new contact, and press OPT, then press SEL then OK to SIM / to PHONE.
• OPT again, then select EDIT, enter the name then press OPT then DONE to confirm the name.
• Press Down and then OPT to select EDIT, enter the number, press OPT then DONE to confirm the number.
• Press OPT then SAVE the new contact.