Nissan LEAF 2023 Owners Manual
8.13. Second incoming call
Whenever there is a second incoming call is shown in the display. By selecting the 
icon the call is accepted and the current call is put on hold.
Selecting 
by rotating <MENU> and pressing <ENTER> rejects the second incoming call. When this is done during the conversation it ends the call.
Selecting the 
key using the <MENU> dial and pressing <ENTER> switches between the phone conversations.
(For the other selections, see Making a call from the phone book earlier)
Owners Manual