Samsung SPH-A420 User Manual page 30

2. When you are connected to the third participant,
press [3] and then [TALK] to begin the three-way
call.
You can press [1] and then [TALK] to
disconnect the third participant's call and
switch back to the first call, or press [2] and
then [TALK] to switch between the calls.
Switching your microphone off or on
You can temporarily switch off your phone's
microphone so that the person on the phone cannot
hear you.
Press <Mute>. To switch the microphone on, press
<UnMute>.
Using In-call options
Press <Options> to access the following options
during a call:
• Speaker On/Speaker Off: turn on the
speakerphone feature or switch back to Normal
mode.
• Key Mute/Key Unmute: mute the key tones so
that the person you are talking to cannot hear any
keypresses, or unmute them to allow the person to
hear the key tones.
To communicate with answering machines or
computerised telephone systems, Key
Unmute must be selected.
• Contacts: access the Contacts menu.
• Messaging: access the Messaging menu.
• 3-Way Call: converse with two people
simultaneously.
• Call History: access the Call History menu.
• Voice Memo: record your conversation.
• Tools: access the Tools menu.
• Phone Info: view your phone information.
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