Samsung SGH-D307MSACIN - Manual (Page 46)

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Sect
ion 3
4. To end the current call, press the key.
Switching Off the Microphone (Mute)
You can temporarily switch off your phone’s microphone,
so that the person on the phone cannot hear you.
To switch the microphone off temporarily:
1. Press the Options soft key or the key.
2. Select Mute. The other person can no longer hear you.
Alternatively, press the Spacebar ( ) key to mute the
call.
To switch the microphone back on:
1. Press the Options soft key or the key.
2. Select Unmute. The other person can hear you again.
Alternatively, press the Spacebar ( ) key to unmute the
call.
Muting or Sending Key Tones
Mute Keys and Send Key options allow you to turn off
and on the key tones. If the Mute Keys option is selected,
your phone does not transmit the DTMF (Dual Tone
Multi-Frequency) tones of the keys, which allows you to
press keys without hearing key tones during a call.
Note: To communicate with answering machines or computerized
telephone systems, the Send Keys option must be selected.
Searching for a Number in the Address Book
You can search for a number in the Address Book during
a call.