Motorola C330 - Manual (Page 92)

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Setting Auto PIN Dial
Some networks require an authenticating PIN code to
allow outgoing calls. Use this feature to automatically dial
your PIN.
Using DTMF Tones
You can send numbers to the network as dual tone
multi-frequency (DTMF) tones during a call. Use DTMF
tones to communicate with automated systems that
require you to submit a PIN code or credit card number.
To set DTMF tones to be long, short, or off:
Short sends a short fixed-duration tone for each keypress.
Long sends each tone for as long as you depress the key.
Short DTMF tones work with most automated systems.
Find the Feature M > Settings
> Other Settings
> Initial Setup
> Auto PIN Dial
Press To
M > Send Tones send a number to the
network as DTMF tones, for
credit card calling or
password entry
Find the Feature M > Settings
> Other Settings
> Initial Setup > DTMF