Read help info
When call waiting is turned on, you can hear and answer a new incoming call while you're on the phone. Follow these instructions to turn call waiting on or off.
Find "Call waiting"
Press Voice call.
Press Call waiting.
Turn call waiting on or off
Press Activation to turn call waiting on or off.
When the circle next to the menu item is marked, the function is turned on.
Press Disconnect to return to standby mode.