Use call waiting
When you have an ongoing call, the new call is indicated by a sound signal.
Press Answer.
Press Answer.
Swap calls
The calls are displayed on a list and the active call is displayed at the bottom.
Press Options.
Press Options.
Press Swap.
End active call
Make sure the call you want to end is active.
Press End active call.
The active call is ended and the call on hold is automatically activated.
Press End active call.
The active call is ended and the call on hold is automatically activated.
Exit
Press End call to return to standby mode.