Makes sense. Mac addresses can be and should be unique. But they are cloneable and spoofed. Cell phones regularly change Mac addresses to discourage tracking. I do not think Verizon would have a deny or allow list by Mac addresses.
Serial number? I don’t know how Verizon could use that.
I suspect that this is a FCC requirement. All transmitters need a license
However I suspect that no one registers. These have been in X5 for awhile, and tech support was clueless.
So.... place cell phone in cradle then it works. I will checks for bars on the phone white the car off and then on. There should be an improvement
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