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Using DTMF tones
You can turn the DTMF key tones off or on during a call.
When the [DTMF Off] option is selected, your phone does
not transmit the key tones. It allows you to press keys
without hearing any key tones during calls.
To communicate with answering machines or computerized
telephone systems, you must select the [DTMF On] option.
Reading or writing a message
during a call
You can read or write a message during a phone call.
❶ Press the [Options] Soft key.
❷ Press the [u/d] key to highlight the [Messaging] option
then press the [o] key.
• To read a received message, select the Inbox
subcommand then scroll to the message that you want
to read.
• To write a new message, select the Write New
subcommand then press the [
o] key. (For further details,
see Write New on page 42.)
Using your headset
You can send or receive a call using your headset.
When you connect your headset to the jack located at the
top of your phone, the button on the headset works as
follows:
• To list recent calls, press the button in Standby mode
• To redial the last call, press the button twice in Standby
mode
• To answer a call, press the button when you receive the
call
• While in Standby mode, press the button once to list
recent calls.
• While in Standby mode, press the button twice to redial
the last call.
• Press the button once to receive a call.
• Press the button once to end the call.
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Options during a call & Using your headset
NOTE
During a call, you can only send text messages.
Multimedia messages cannot be sent, but can be saved.
06.04.03_C300_EN_REV00.indd 33 2006.4.4 11:53:21 AM