Nokia E52 User Manual
Also see for E52: User guideUser guideSpecificationsUser guideService manual
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When security features that restrict calls are in use(such as call barring, closed user group, and fixeddialling), calls may be possible to the officialemergency number programmed into your device. Callbarring and call diverting cannot be active at the sametime.You need your PIN2 code to activate and deactivatefixed dialling or edit your fixed dialling contacts.Contact your service provider for your PIN2 code.Select Options and from the following:• Activate fixed dialling — Activate the fixeddialing.• Deactivate fixed dialling — Deactivate the fixeddialing.• New SIM contact — Enter the contact name andphone number to which calls are allowed.• Add from Contacts — Copy a contact from the listof contacts to the fixed dialling list.To send text messages to the SIM contacts while thefixed dialling service is active, you need to add the textmessage centre number to the fixed dialling list.Certificate managerSelect Menu > Ctrl. panel > Settings and General >Security > Certificate management.Digital certificates are used to verify the origins ofsoftware but do not guarantee safety. There are fourdifferent types of certificates: authority certificates,personal certificates, trusted site certificates, anddevice certificates. During a secure connection, a servermay send a server certificate to your device. Uponreceipt, it is checked through an authority certificatestored in your device. You receive notification if theidentity of the server is not authentic or if you do nothave the correct certificate in your device.You can download a certificate from a web site, orreceive a certificate as a message. Certificates shouldbe used when you connect to an online bank or aremote server to transfer confidential information.They should also be used if you want to reduce the riskof viruses or other malicious software, and to check theauthenticity of software when you download andinstall software to your device.Tip: When you add a new certificate, check itsauthenticity.View certificate detailsYou can only be sure of the correct identity of a serverwhen the signature and the validity period of a servercertificate have been checked.To view certificate details, open a certificate folder, andselect a certificate and Options > Certificatedetails.One of the following notes may appear:• Certificate not trusted — You have not set anyapplication to use the certificate. You may want tochange the trust settings.• Expired certificate — The period of validity hasended for the selected certificate.• Certificate not valid yet — The period of validityhas not yet begun for the selected certificate.• Certificate corrupted — The certificate cannot beused. Contact the certificate issuer.125 Security and data management |
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