See also:

Conference Call
When two calls are in progress (one active and one on hold), press and hold the button until you hear a double beep indicating that the two calls have been joined into one conference call. ...

Place/Retrieve A Call From Hold
During an active call, touch the “Hold” soft-key on the Phone main screen. ...

Phone/Bluetooth
After pressing the Phone/Bluetooth soft-key the following settings will be available. • Paired Devices This feature shows which phones are paired to the Phone/Bluetooth system. For further inf ...