Attempting call with locked SIM triggers no error dialog

When attempting a call with locked SIM then WoA dialer silently ignores the call action. It is a good idea to either display an error message ("PIN required") or prompt the user with an input dialog to unlock their SIM.

Windows 10 ARM64 build 18908 using gus33000's NTARM64 1909 driver pack WoA deployer install.