Nokia 5140i User Manual - Page 89
Digital signature, 18. SIM services - buy
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SIM services Digital signature You can make digital signatures with your phone if your SIM card has a security module. Using the digital signature can be the same as signing your name to a paper bill, contract, or other document. To make a digital signature, select a link on a page, for example, the title of a book you want to buy and its price. The text to sign, which may include the price and date, is shown. 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 and you should not enter any personal data such as your signing PIN. To sign the text, read it all first and select Sign. The text may not fit within a single screen. Therefore, make sure you scroll through and read all of the text before signing. Select the user certificate you want to use. Enter the signing PIN (see Access codes p. 9), and select OK. The digital signature icon disappears, and the service may display a confirmation of your purchase. 18. SIM services Your SIM card may provide additional services that you can access. This menu is shown only if it is supported by your SIM card. The name and contents of the menu depend on the SIM card. For availability, rates and information on using SIM services, contact your SIMcard vendor, for example, network operator, service provider or other vendor. To set the phone to show you the confirmation messages sent between your phone and the network when you are using the SIM services, select Menu > Settings > Phone > Confirm SIM service actions >Yes. Note that accessing these services may involve sending messages or making a phone call for which you may be charged. 89