Nokia 3330

Page 110
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19.  Reference information
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Sending DTMF tones
The phone can send DTMF tones to communicate with answering machines, computerised telephony 
services etc. 
Make a call in the normal way. Press 
 and 
 (
Options
), and select 
Send DTMF
. Key in the DTMF 
string or recall it from the phone book, and press 
 (
OK
).
s
Access codes
You can use the access codes described in this section to avoid unauthorised use of your phone and 
SIM card.
The access codes (except the PUK and PUK2 code) can be changed within the Change access codes 
function (see page 62).
Security code
The security code can be used to avoid unauthorised use of your phone (see Security level on page 81). 
The default setting for this code is 12345. Change the code (see Change access codes on page 81) and 
set the phone to request it (see Security level on page 81).
Keep the code secret and in a safe place, separate from the phone.
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