Galaxy S10 Plus cant make or receive calls since 2-2-2022
I have been unable to make or receive calls since 2-22-2022. I noticed no calls on Tuesday, rebooted phone, still no calls, checked for updates, none, phone was up to date, reset network settings, no calls, booted to android bootloader and cleared cache, no calls, factory reset device, no calls, put a friends sim card from different carrier, worked fine, put mine back, 1 call successful using my sim, then after 10 minutes no calls, went to AT&T store, he checked that my phones model number was on the whitelist, it was and he put in a sim card from a demo phone booted it to make sure it had initialized and authenticated correctly, inserted my SIM and made a call successfully, 10 minutes later, no calls.... it is something in the VoLTE switch that is flagging the traffic of certain devices as blocked even though it should be allowed is my only thought. Similar to firewall rules but, not being versed in how this data is managed, it is only speculation. All i know is that my S10e stopped working Tuesday, I bought an AT&T branded S10 plus on Thursday that had all the latest updates and both phones will not make or receive calls. my daughters OLD iPhone 6 that has been in a drawer for over 2 years, will make and receive calls all day long.... FRUSTRATING.