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"If AT&T ... has phantom data then it would be across the board and would also show up on transfers through their data modems not just their iPhone plans." Why
by sukuriant 15y ago
"If AT&T ... has phantom data then it would be across the board and would also show up on transfers through their data modems not just their iPhone plans."
Why?
Their modems might be programmed to operate or need to update differently.