If supported by your service provider, call waiting notifies you of an incoming call even while you are in a call. You can accept, reject, or ignore the incoming call.
On the Start screen, select Phone
- To enable the call waiting feature in Nokia Lumia, enter *43# in the dialer and press call.
- To disable it, simply enter #43# in the dialler and press call.
You can see whether call waiting is active, and for which type of calls.Enter*#43# in the dialler and press call.
Call settings do not work on 4G. To switch the call waiting option, change the Highest connection speed, go to Settings > Cellular.