We had some dead spots of signal at my dad's office. It was not a thing of a single carrier because all were equally affected, and they just kept saying "Sorry we can't take responsibility". So I investigated a little and found this kind product. Then made a further investigation in order to decide which model to buy. At the end, I chose this one and I'm very glad I did. It includes absolutely all that we needed in order to install it. Its positioning will need a little trial and error but we finally found a sweet spot and so far we have solved all of our problems. 100% recommended.
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