agesilaus wrote:
How does this answer the OP's question?
External amps and antennas are not a fix for everything, especially if there is no tower close enough to you for the service vendor you subscribe to.
No tower signal in to the amp = no service
Reliable service requires several cell towers within 5 or so miles of you.
If you have one bar of signal on your phone direct, then external amp and antenna "might" help, but it might not.
Nothing magical about it.
Not to mention Verizon and ATT use two different incompatible methods with pros and cons between the two systems.
