Thanks so much for reaching out!
I think I already know what's going on. The WiFi Calling and Texting won't be compatible with a non T-Mobile device, which is why you haven't seen an improvement in coverage. And because you don't have a T-Mobile device, the other booster option likely won't help either.
I wish I had better news to deliver, or something helpful for what you already have.
Ahh gotcha! I do Plan on upgrading to a T MO Note 4 in the next couple weeks or so.
That being said, is their anything i can do in the mean time to get better service at my house? I have seen the repeaters and have seen the 4G LTE Cellspot, but noticed you said those may not work. I typically have ~1 bar of service in my house. Not of LTE though I get great service everywhere else though!
A WiFi Cellspot Router is simply a WiFi Router. It does not help with handsets without WiFi Calling.
An LTE Cellspot works exactly the same way as WiFi Cellspot Router, except that you do not need a device with WiFi Calling. LTE Cellspot is a personal T-Mobile Cellular tower for your home! It broadcasts LTE Band 4 and UMTS (3G) Band 2 signals, both of which your phone is (should be, according to specs I got from Samsung website) capable of using.
You should be fine with an LTE Cellspot.