M e n u f u n c t i o n s24In the standby mode, select Menu > Extras > Converter. To access your lastfive conversions, select Last 5 conv. You can also select from the six predefinedunit categories.You can add your own conversions with My conversions.When doing a conversion, you may scroll up or down to swap the positions of theunits in the conversion.ComposerSelect Menu > Extras > Composer and a tone. To create your ownringing tones, enter the notes. For example, press 4 for note f.Press 8 to shorten (-) and 9 to lengthen (+) the duration of thenote or rest. Press 0 to insert a rest, * set the octave, and # tomake the note sharp (not available for notes e and b).After you complete the ringing tone, select Options > Play,Save, Tempo, Send, Clear screen or Exit.Leaving applications running in the background increases the demand on batterypower and reduces the battery life.■ SIM servicesYour SIM card may provide additional services that you can access.This menu is shown only if it is supported by your SIM card. The nameand contents of the menu depend on the SIM card.For information, contact your service provider.