[ 53 ]Use the phone book5View service numbersYour wireless provider may have saved service numbers to your SIM card.To view these numbers:1 At the Start screen, press Names, Scroll to Service nos. andpress Select.A list of numbers, if any are available, appear in the display.2 To view details of a number, scroll to the number and press Details.Note: This feature may not be supported by your SIM card. If so,contact your wireless provider if you wish to have it enabled.Use caller groupsYou can create groups of names in your phone book and give each group adifferent ringing tone. When someone from that group calls, you’ll knowbecause of the ringing tone.ADD NAMES TO A CALLER GROUPThe name you add to a caller group must first be stored in the phone book.1 From the Start screen, scroll to the name or number you want.2 Press Details, then press Options.3 Scroll to Caller groups and press Select.4 Scroll to the group that will have this name and press Select.REMOVE NAMES FROM A CALLER GROUP1 Follow steps 1 through 3 above.2 Scroll to No group and press Select.ASSIGN A RINGING TONE TO A CALLER GROUP1 From the Start screen, press Names.2 Scroll to Caller groups and press Select.3 Scroll to the group you want and press Select.4 Scroll to Group ringing tone and press Select.