Making phone calls from my MacBook Pro
I used to be able to call friends that were not Apple users, but no longer can. I still can call anyone who has an iPhone without it defaulting to FaceTime audio, but others go to FaceTime audio. Those calls sound like they are connecting, but all they do is ring, and the person I am calling doesn't receive the call. Anyone know how I can get my non Apple friends phones accessible again? Thanks in advance for your help.
PS. I have checked that both phone and computer are set correctly in date and time and I have restarted both.
MacBook Pro 13″, macOS 10.14