Chapter 6
56 Advanced Operations
DTMF Tone Length
The tone you hear when you press a key on your keypad is
called a “DTMF” tone. Most phone services and answering
machines require the phone to transmit this tone when a digit
key is pressed. This menu setting allows you to shorten or
lengthen the time the tone is emitted. DTMF tones are
transmitted even when key tones are turned off.
1From standby, press (MENU) to enter the Main Menu.
2Press to scroll to Phone Settings. Press (OK).
3Press to scroll to DTMF Duration. Press (OK).
•The current setting is displayed with an asterisk ( ).
4To change the DTMF setting, scroll to the other option . Press
(OK).
•The display confirms the DTMF duration setting.
5Press any key or wait 3 seconds to return to standby.