mojavewifi-calling
I am not able to answer incoming phone calls on my Mac running macOS Mojave. The call notifications pops up both on my iPhone XS and my 2017 MacBook Pro, but when I go to answer the call on my Mac, it continues to ring on my phone.
I can make calls from the Mac just fine, but unable to answer incoming calls?
I resolved it by deleting:
com.apple.AppleMultitouchMouse.plist, and
com.apple.driver.AppleBluetoothMultitouch.mouse.plist
files from user ~/Library/Preferences/ directory.
I have same issue when I change System Preference->Spotlight setting.
From Monitor App, I found Spotlight progress takes a lot of memory, so I disable some options from Spotlight setting's *Search Results*, and then Desktop Stacks with those types disappear.
So, re-enable the expected type in Spotlight setting, the type will show on Desktop.
Best Answer
I had the same problem. The reason was that my MacBook Pro was connected to two networks, one via WiFi (the same one as my iPhone), and the other one via Ethernet directly to the router, bypassing the Access Point. Once I shut down the Ethernet, I was immediately able to answer phone calls on the Mac.