Press Menu and select Settings and Security settings. Select:
- PIN code request to set the phone to request your PIN code every time the phone is switched on.
- Call barring service (network service) to restrict calls.
- Fixed dialling to restrict your outgoing calls and text messages to selected phone numbers if this function is supported by your SIM card. When fixed dialing is on, (E)GPRS connections are not possible except while sending text messages over an (E)GPRS connection. In this case, the recipient’s phone number and the message center number have to be included on the fixed dialing list.
- Closed user group. This network service specifies the group of people whom you can call and who can call you.
- Security level.
- Select Phone to set the phone to ask for the security code whenever a new SIM card is inserted into the phone.
- Select Memory and the phone will ask for the security code when the SIM card’s memory is selected and you want to change the memory in use or copy from one memory to another.
- Access codes to change some access codes.
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When security features that restrict calls are in use (call barring, closed user group and fixed dialing), calls may be possible to certain emergency numbers in some networks (e.g. 112, 911 or other official emergency numbers).
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