There is a cell tower on Tiger Mt and we've always had service up there.
Yes
Just keep it fully charged or have a power/juice pack with you. If in and out of network or apps connecting on and off, it may drain battery quicker. Other than that, connectivity is reliable.
As long as it's not raining too hard.
Yes. There is service virtually everywhere on the trails.
I did with T Mobile on the lower east side of the mountain
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