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Some phone services (such as phone answering machines and pagers) require
your phone to transmit DTMF tones (Dual Tone MultiFrequency), also known
as "touch tones". These are used to communicate passwords, callback
numbers, caller choices, and so on.
You can send DTMF tones at any time during a call by pressing any of the keys
0
9
*
#
to
,
and
. You can also attach a DTMF sequence to a phone
number before dialling it (or storing it in the Phonebook). The phone number
and the DTMF part must be separated by a wait character.
#
To obtain a pause or wait character, press and hold
. The display shows
w
for a wait and
p
for a pause. The phone always interprets the first pause
character as a wait character. When you dial a number containing a wait
character, your phone dials the first part (the phone number) and then waits for
the call to be connected before sending the rest of the digits as DTMF tones.
Any subsequent pause character is an ordinary pause that generates a delay of
2.5 seconds.
To hear all messages (e.g. code 3) on your answering machine (password 8421)
at phone number 12345678, you could call:
12345678w8421p3.
The phone dials 12345678 and waits for the call to be connected. When
connected, the phone transmits 8421 (the password), pauses 2.5 seconds, and
then sends the last digit. If you find that 2.5 seconds is not long enough for your
needs, you can enter several pause characters one after the other to increase
the pause time.
You can make a second call during an active call or during a call on hold. You can
switch between the two calls (the cost displayed on the screen depends on
local charge rate).
Other
70
operator
services
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