Yet to be seen is the range of 5 GHz inside the household. The higher the frequency, the more it's attenuated by obstacles in the path-- doors, walls, and floors/ceilings (in multi-story homes).
If you remember the days of 46/49 MHz cordless phones, we could walk halfway down the block and still use them. Our 5.8 GHz phones today will barely reach out into the driveway.
Thats' why you should be using the DECT 6.0 phones which use the 1.9GHz frequency.
I bought this kit about 6 months ago because our 5.8 GHz phones didn't have as much security and I was concerned about leaking personal info like SSNs and credit card numbers into the air.
They still don't have anywhere near the range of my old 46 MHz phone, though.
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