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Settings
Auto Redial (Menu 9.4.7)
Select On, and your phone will make a maximum of three attempts to
connect the call after an unsuccessful call attempt.
Send DTMF (Menu 9.4.8)
You can send the DTMF (dual tone multi-frequency) tones of the number
on the display during a call.
This option is helpful for entering a password or account number when you
call an automated system, like a banking service.