Nokia 6555 - Manual (Page 9)

G e n e r a l i n f o r m a t i o n
8
General information
■ Access codes
Security code
The security code (5 to 10 digits) helps to protect your phone against unauthorized use.
For more information on security codes, see "Security," p. 76.
PIN codes
The personal identification number (PIN) code and the universal personal
identification number (UPIN) code (4 to 8 digits) help to protect your SmartChip
card against unauthorized use. See "Security," p. 76.
The PIN2 code (4 to 8 digits) may be supplied with the SmartChip card and is
required for some functions.
The module PIN is required to access the information in the security module. See
"Security module," p. 51.
The signing PIN is required for the digital signature. See "Digital signature," p. 52.
PUK codes
The personal unblocking key (PUK) code and the universal personal unblocking
key (UPUK) code (8 digits) is required to change a blocked PIN code and UPIN
code, respectively. The PUK2 code (8 digits) is required to change a blocked PIN2
code. If the codes are not supplied with the SmartChip card, contact your local
service provider for the codes.
Restriction password
The restriction password (4 digits) is required when using the Call restriction
service . See "Security," p. 76.
■ Configuration settings service
To use some of the network services, such as mobile internet services, MMS, Nokia
Xpress audio messaging, or remote internet server synchronization, your phone
needs the correct configuration settings. For more information on availability,
contact your network operator, service provider, nearest authorized Nokia dealer,
or visit the support area on the Nokia website,
www.nokia.com/support .