Samsung SGH-D807ZKACIN - Manual (Page 26)

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3. Press the key to switch from speakerphone to earpiece. Enter Yes or
No at the prompt.
Switching off the Microphone (Mute)
You can temporarily switch your phone’s microphone off, so that the other person
cannot hear you.
Example: You wish to say something to person in the room, but do not want the person on the phone to hear
you.
During a call, to switch the microphone off temporarily:
Press the Mute soft key.
To switch the microphone back on:
Press the Unmute soft key.
Muting or Sending Key Tones
These options allow you to turn the key tones off or on. 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 annoying 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 Address Book
You can search for a number in Address Book during a call.
1. Press the Options soft key.
2. Press the Down key to highlight the Address Book option.
3. Press the Select soft key or the key.
The Address Book entries are listed.
4. If you enter the first few letters of the name, the Address Book entries are
listed starting with the first entry matching your input.
5. To view the highlighted entry, press the key.
For further details about the Address Book feature, see "Finding an Address Book
Entry" on page 40.