Nokia 6650

Page 144
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Menu fu
nctions
144
Copyright
 © 
2003 Nokia. All rights reserved.
Emptying the cache memory
To empty the cache memory:
• When no connection is in progress: Press 
Menu
 in standby mode, and select 
Services
 and 
Clear the cache
.
• When a connection is in progress: Press 
Options
 and select 
Other options
 and 
Clear the cache
.
Security features for browser connections
Security features may be required for some services, such as banking services. For 
such connections you need security certificates. For more information, contact 
your service provider.
Certificates
There are two kinds of certificates: server certificates and authority certificates.
• Server certificates
The phone uses a server certificate to create a connection with improved 
security to the service provider. The phone receives the server certificate from 
the service provider before the connection is established and its validity is 
checked using the authority certificates saved in the phone. Server certificates 
are not saved. The phone indicates if the identity of the Internet server cannot 
be verified, if the Internet server certificate is not authentic or if you do not 
have the correct authority certificate in your phone.
The security indicator 
 is displayed during a connection, if the data 
transmission between the phone and the Internet server  is encrypted.
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