Samsung SGH-X640 - Manual (Page 25)

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Call functions
Using the headset
Use the headset to make or answer calls without
holding the phone.
Connect the headset to the jack on the right side of
the phone.
The buttons on the headset work as listed below:
Options during a call
You can access a number of functions during a call.
Adjusting the volume during a call
Use [ / ] to adjust the earpiece volume during a call.
Press [ ] to increase the volume level and [ ] to
decrease the volume level.
Recording your call conversation.
Press <Options> and select Conv. record to record
your conversation during a call.
Access your recorded conversation in the Voices
menu.
Placing a call on hold/Retrieving
Press <Hold> or <Retrie.> to place the call on hold
or retrieve the call.
Making a second call
You can make another call if your network supports it.
1. Press <Hold> to put the call on hold.
2. Make the second call in the normal way.
3. Press <Swap> to switch between the calls.
4. Press <Options> and select End held call to end
the call on hold.
5. To end the current call, press [ ].
To Press
redial the last call the button twice.
answer a call and hold the button.
end a call and hold the button.