I could have sworn bag phones all quit working about ten years ago everywhere but Stovepipe, the town in the bottom of death valley.
I think I might pay a considerable sum for one that works cross country....
Life360
iexit
Rvparky
Maps
Sygic maps
Torque
Park advisor
Overlander
Harvest hosts
Police scanner
Radar now
Waze
Placards
Flightradar24
Smart tools
Garage buddy
YI camera
MyQ
Dashboard pro
Back country navigator
US topo maps
Sygic, maps, iexit, torque, radar now, police scanner always running.
Step up and pay the $1.99+- for pro versions.
I suggest you buy an old phone, a galaxy five or such for 40 bucks, load these programs on it and leave it in the rv at all times. It frees up your phone and allows you to have multi screens open to multiple apps.
I've assumed you have an android.....
And tablets with 10" screens are only 80 bucks at Walmart... They use all the programs I've listed except iexit and Life360. Buy one. ONN is the brand.