No popup controller for iPhone calls through my Mac
For quite some time, I've been placing and receiving iPhone calls with my Mac. Until recently, a small popup window automatically appeared in the upper-right corner of my display, allowing me to manage the call. I especially liked the popup changing into a keypad so I could respond to automated requests, e.g., "Press 2 to connect to ...."
The popup window no longer appears for incoming or outgoing calls. Although the calls still allow me to talk through my Mac, I can no longer manage them. How can I get the popup back?
Mac mini, macOS 15.3