Nokia 6800 User's Guide download pdf (Page 101)

Disconnect from the Internet

• To quit browsing and end the connection, select Options > Quit.

When the Quit browsing? message appears, press Yes.

• Press

d. If GSM data is the selected data bearer, then press d twice.

• SECURITY

Security features are required for some WAP services, such as banking services or

shopping on a WAP site. For such connections you need security certificates and

possibly a security module, which may be available on your SIM card.

The security module can contain certificates as well as private and public keys. The

security module provides security services for WAP- related applications and allows

you to use a digital signature. The certificates are saved in the security module by

the service provider, or they can be downloaded from a WAP site. For more information,

contact your service provider.

Clear the cache

The information or services you have accessed are stored in the cache of your phone.

A cache is a buffer memory, which is used to store data temporarily. If you tried to

access or have accessed confidential information requiring passwords (for example,

your bank account), empty the cache of your phone after each use.

1 Select Menu > Services. After a brief pause, a list of options appear in the display.

If browsing, press Options.

2 Scroll to Clear the cache and press Select.

About authority certificates

To use some XHTML services, such as banking services, you need an authority

certificate. Using the certificate can help you to improve the security of

connections between your phone and an XHTML server.

You can download the certificate from an XHTML page if the XHTML service supports

the use of authority certificates. After the download, you can view the certificate,

then save or delete it. If you save the certificate, it is added to the list of certificates

in the phone.

Your phone alerts you if the identity of the XHTML server or XHTML gateway cannot

be verified or is not authentic.

View the list of authority certificates

Select Menu > Services > Settings > Security settings > Authority certificates >

Certificate list. The list of authority certificates is displayed.

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Nokia 6800 User's Guide Page 101