Motorola MOTORIZR Z3 Manual Del Usuario página 68

features
fixed dial
When you turn on fixed dialing, you
can call only numbers stored in the fixed
dial list.
Note: You must enter your SIM PIN2 code
to turn fixed dialing on or off. If you forget
your PIN2 code, contact T-Mobile.
Turn fixed dialing on or off:
Main Menu > w Settings > Security > Fixed Dial
Use the fixed dial list:
Main Menu > w Settings > Tools > Dialing Services
> Fixed Dial
66 other features—advanced calling
features
DTMF tones
Activate DTMF tones:
Main Menu > w Settings > Initial Setup > DTMF
To send DTMF tones during a call, just
press number keys, or scroll to a number in
the phonebook or recent calls lists, then
press Options > Send Tones.