37S e t t i n g sPIN code request or UPIN code request — to set the phone to ask for your PIN orUPIN code every time the phone is switched on. Some SIM cards do not allow thecode request to be turned off.PIN2 code request — to select whether the PIN2 code is required when using aspecific phone feature which is protected by the PIN2 code. Some SIM cards donot allow the code request to be turned off.Call barring service — to restrict calls to and from your phone (network service). Abarring password is required.Fixed dialling — to restrict your outgoing calls to selected phone numbers, ifsupported by your SIM card. When fixed dialling is on, GPRS connections are notpossible, except while sending text messages over a GPRS connection. In this case,the recipient’s phone number and the message centre number must be included inthe fixed dialling list.Closed user group — to specify a group of people whom you can call and who cancall you (network service)Security level — Select Phone to request the security code whenever a new SIMcard is inserted into the phone. Select Memory to request the security code whenthe SIM card memory is selected, and you want to change the memory in use.Access codes — to change the security code, PIN code, UPIN code, PIN2 code, orbarring passwordCode in use — to select whether the PIN code or UPIN code should be activeAuthority certificates or User certificates — to view the list of the authority or usercertificates downloaded into your phone. See “Certificates,” p. 47.Security module sett. — to view the security module details, activate PIN requestfor the security module, or change the module PIN and signing PIN. See also“Access codes,” p. 10.■ Restore factory settingsTo restore the phone’s original factory settings, select Menu > Settings > Rest.factory sett. and from the following options:Restore settings only — to reset all preference settings without deleting anypersonal dataRestore all — to reset all preference settings and delete all personal data, such ascontacts, messages, media files, and activation keys