the way I understand it


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Posted by Hoot (108.209.156.117) on 16:25:23 03/19/14

In Reply to: Cell Phone Coverage posted by hikergr

There are2 types of cell signals.
AT&T and T-Mobile use GSM
Verizon and Sprint use CDMA
The cell towers at:OF, Grant, and the new one at Lake carry both type of signals.
The towers at Mammoth and Washburn only carry the CDMA signals.
Most people recommend Verizon for inside the park. I have T-Mobile and can't get anything at the north end of the park.
In GTNP, everybody's cell phone works fine.



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