6. ADDITIONAL FEATURES
Sending DTMF Tones
The Dual Tone Multi Frequency (DTMF) feature allows
you to send touch tones which can be used to con-
trol equipment such as bank-by-phone or voice-
mail by using your cellular phone.
There are two alternative ways to send DTMF tones:
1. Manual dialing
➀
Make a call to the desired number in the usual
way (e.g. to your bank’s computer phone number).
➁
Enter the digits to be sent as DTMF tones
(e.g., your bank account number and password).
2. Automatic dialing
You can send a string of digits as DTMF tones by
storing the string in a phone directory location and
then recalling it for automatic DTMF transmission.
•
When storing the string, insert a wait character
between the access phone number and DTMF
number. (See Adding a Wait Character on page 39.)
➀
Recall the phone directory location containing
the phone number and DTMF string to be sent.
➁
Press
to dial the phone number.
➂
After the phone number has disappeared from
the display, wait for the tone and press
.
•
If the keypad tones have been set off, the DTMF
tones will be sent, but you will not hear them.
➃
To end the call, press
after the DTMF
transmission is completed and the phone has
returned to the normal call mode.
Note: If you recall a DTMF number from the memory
during a call, do not recall the number by first entering
the location number and then pressing
or
,
because then the location number will be sent as
DTMF tones.
NHA-4NG Nokia 638_AU
Authentication version
US English 9351137
Issue 3
Version: 0.7, Date: 11 (2) Dec.
1996
Status: ToL, JaK, JaG, SIR, JoF
38
