I’ve had this issue in the last few days. Whenever I get a call, once I accept it there seems to be a second call on hold. I’ll attach a screenshot the next time this happens. But I’m not 100% sure why it’s happening or if it’s even really a problem. The second call on hold will be the number that called me. Its as if there is a ghost call
Screenshot will be helpful. If the issue continues, you can try the following:
Uninstalling the Google updates fixed it.