Brand New Zenfone 8 purchased from Amazon in the US, no rooting or mods and latest Android 12 update applied. The phone appears on AT&T's approved list at att.com/3gsunset, but the phone will not make or receive voice calls. AT&T 611 says that VoLTE support is required, and that I need to buy a new phone. I otherwise like the Zenfone 8. Should I return the Zenfone 8 or will Asus work this out with AT&T?