• SET TOUCH TONES
Touch tones are sounds that are produced when you press the keys on your
phone’s keypad. Sometimes, touch tones are called DTMF tones.
You can use touch tones for many automated over-the-phone services
such as checking bank balances and airline schedules and using your voice
mailbox. Those features depend on operator’s availability. Touch tones can
be sent only when a call is active.
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