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S I M s e r v i c e s
The security icon does not indicate that the data transmission between the gateway
and the content server (or place where the requested resource is stored) is secure. The
service provider secures the data transmission between the gateway and the content
server.
Digital signature
You can create digital signatures with your phone if your SIM card has a security module.
The digital signature is the same as signing your name to a paper bill, contract, or other
document.
To create a digital signature, select a link on a page, for example, the title of the book
you want to buy and its price. The text to be signed is shown and may include the
amount and date.
Check that the header text is Read and that the digital signature icon
is shown. If
the digital signature icon does not appear, there is a security breach; do not enter any
personal data (such as your signing PIN).
To sign the text, read all of the text first, and select Sign. The text may not fit within a
single screen. Therefore, make sure to scroll through and read all of the text before
signing.
Select the user certificate you want to use, and enter the signing PIN. The digital
signature icon disappears, and the service may display a confirmation of your purchase.
17. SIM services
Your SIM card may provide additional services. You can access this menu only if it is
supported by your SIM card. The name and contents of the menu depend on the available
services.
For availability and information on using SIM card services, contact your SIM card vendor.
This may be the service provider or other vendor.
To show the confirmation messages sent between your phone and the network when
you are using the SIM services, select Menu > Settings > Phone > Confirm SIM
actions
Accessing these services may involve sending messages or making a phone call for which
you may be charged.
18. Battery information
Charging and discharging
Your device is powered by a rechargeable battery. The battery can be charged and
discharged hundreds of times, but it will eventually wear out. When the talk and standby
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