If there's "no phone or naips", are you sure that there's VHF coverage at a height you care about ?
You can call Flightwatch for weather and flight details, and it is their job to take it, but you won't make any friends if you do it regularly on VHF.
If you're planning to fly where there's truly no other coverage, it's time to buy a satphone. Don't even think about complaining about the cost - it's mission-critical, safety-of-flight equipment.