Constant connection issues at Morristown NJ

I have seen issues with iPhones just going into SOS mode for no reason at all.  Had a friend on Verizon experience this over the weekend in an area she always has service.  Even putting the device on WiFi Calling didn’t clear the issue while it lasted.  Verizon never could figure out what happened but her device started working normally again after a few hours.  

iPhone’s also have very weak radios compared to some other devices thanks to the Intel modems they use.  If the building you are in is an older building.  That might explain why.  If you have WiFi available.  Try connecting to that and make sure WiFi Calling is enabled.  

If you have had the same SIM card for more than a couple of years.  You might want to swap it out for a new one to see if that might be the issue.