S e t t i n g s67Access codesYou can change your device access codes and PIN code. In the standbymode, select Menu > Settings > Security > Access codes. Then chooseone of the following options:Change security code—Change the security code to a new one.Change PIN code—Change the PIN code to a new one.Voice privacyVoice privacy is a network service. See “Network services,” p. 69. If yourwireless service provider supports this feature, the voice privacy featureprotects the privacy of your current phone conversation from othercallers placing phone calls on your same network. In the standby mode,select Menu > Settings > Security > Voice privacy > On or Off.Personal unblocking key (PUK) codeThe PUK code is used to restore a blocked PIN code. The PUK code is 8characters in length and cannot be changed. The PUK code must beobtained from your wireless service provider.Important: If you enter an incorrect PUK code 10 times insuccession, the SIM card is rejected and can no longer be used.You must contact your wireless service provider for a new SIMcard.■ Enhancement settingsThe enhancement settings menu is shown only if the device has beenconnected to a compatible enhancement. In the standby mode, selectMenu > Settings > Enhance-ments > Headset, Handsfree or Charger.HeadsetImportant: The headset may affect your ability to hear soundsaround you. Do not use the headset in situations that mayendanger your safety.