Facetime audio calls not working using iPhone
Update
This is working for me now for the last 2 days.
When the new WiFi router was set up, I took advantage of the option to use the exact same network name and password for my network that was used with the previous router (different manufacturer and network type). Basically, I’m lazy and didn’t want to relog into 20+ devices on the existing network. That may have contributed to the problem.
As I said previously, I logged out of Facetime on my Macbook Pro {MBP) and logged right back in again. There was no difference in operation. However, I shut the Macs down at the end of every day and restart them the following morning. The day after I did the Facetime logout/login, tried it again and it worked. Also got a notification on my other Apple devices about the log in on the MBP after using phone with facetime.
So I’m keeping my fingers crossed that it’s fixed.