My phone is able to receive calls from Canadian numbers but not US numbers. The US caller was on Verizon and got the error "call cannot be completely as dialed." Thanks!
Restarting the phone helped. I went from "no network" to "Public Mobile." I was able to make and receive calls, but my phone didn't have any sound when receiving calls. As of now, calling works fine. But voicemail doesn't. So there does seem to be so...