Nokia E71 User Manual

Also see for E Series: User guide User guide User guide User guide User guide

Contents

Nokia E71 User Manual Manual pdf 112 page image

your fixed dialing contacts. Contact your service providerif you do not have the code. To cancel the service, selectOptions > Deactivate fixed dialing.Tip: To send text messages to the SIM contacts whilethe fixed dialing service is active, you need to add thetext message center number to the fixed dialing list.Certificate managerSelect Menu > Tools > Settings > General > Security >Certificate management.Digital certificates are used to verify the origins of softwarebut do not guarantee safety. There are four different types ofcertificates: authority certificates, personal certificates,trusted site certificates and device certificates. During asecure connection, a server may send a server certificate toyour device. Upon receipt, it is checked through an authoritycertificate stored in your device. You receive notification ifthe identity of the server is not authentic or if you do not havethe correct certificate in your device.You can download a certificate from a web site, or receive acertificate as a message. Certificates should be used whenyou connect to an online bank or a remote server to transferconfidential information. They should also be used if youwant to reduce the risk of viruses or other malicious software,and to check the authenticity of software when youdownload and install 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 server whenthe signature and the validity period of a server certificatehave been checked.To view certificate details, open a certificate folder, and selecta certificate and Options > Certificate details.One of the following notes may appear:• Certificate not trusted — You have not set anyapplication to use the certificate. You may want to changethe trust settings.• Expired certificate — The period of validity has endedfor the selected certificate.• Certificate not valid yet — The period of validity has notyet begun for the selected certificate.• Certificate corrupted — The certificate cannot be used.Contact the certificate issuer.Certificate trust settingsTrusting a certificate means that you authorize it to verifyweb pages, e-mail servers, software packages and other data.Only trusted certificates can be used to verify services andsoftware.Important: Even if the use of certificates makes therisks involved in remote connections and softwareinstallation considerably smaller, they must be used correctlyin order to benefit from increased security. The existence ofa certificate does not offer any protection by itself; thecertificate manager must contain correct, authentic, or© 2010 Nokia. All rights reserved.112