Chapter 648 Additional OperationsWhen TTY Mode is set to Off, any accessory that is connected through theheadset/TTY connector is treated as a headset (handsfree device).1 From standby, press (MENU) to enter the Main Menu.2 Scroll to Phone Settings and press (OK).3 Scroll to Miscellaneous and press (OK).4 Scroll to TTY Mode and press (OK).5 To change the TTY Mode, scroll to the other option and press(OK).DTMF DurationThe tone you hear when you press a key on your keypad is called a“DTMF” tone. Most phone services and answering machines require thephone to transmit this tone when a digit key is pressed. This menu settingallows you to shorten or lengthen the time the tone is emitted. DTMF tonesare transmitted even when key tones are turned off.1 From standby, press (MENU) to enter the Main Menu.2 Scroll to Phone Settings and press (OK).3 Scroll to Miscellaneous and press (OK).4 Scroll to DTMF Duration and press (OK).5 To change the DTMF setting, scroll to the other option and press(OK).Reset DefaultsWhen you select Reset Defaults on the Miscellaneous menu, any of yourphone’s settings that you have modified are restored to their originalvalues (that is, to the settings that were in effect when you purchased yourphone).Note: None of your Phonebook entries are changed.1 From standby, press (MENU) to enter the Main Menu.2 Scroll to Phone Settings and press (OK).3 Scroll to Miscellaneous and press (OK).4 Scroll to Reset Defaults and press (OK).5 When prompted, enter your lock code and press (OK).6 Press (YES) to confirm the reset.The following table lists the default values for your phone. The tonesettings reflect the default settings for handheld and handsfree use.Note: Depending on your wireless service provider, some of your defaultsettings may be different from those shown in the table.