So what's it suppose to be? Is -97 better or worse then -110? Also if someone knows, what it the number where it may drop a call?
-97 is better than -110 (note that these numbers are
negative. a larger number, in this case -97, is better). Your mileage may vary, but between -95 and -100 is about where calls tend to start dropping for me; over -105, I can almost guarantee my call will drop. I'm lucky to be able to make a call at -102 dBm or worse.
I have had to pay attention to this in the past. I live in a fairly remote area, and I've had to return phones for weak antennas. But they didn't have the great apps 15 years ago to measure this when it was initially a problem for me. I literally had to take 2 phones and drive to the normal places I go and see where I could make a call, and where I couldn't.
There are actually 2 factors at play here - the actual signal strength available based on the nearest tower and your proximity to it, and your phones ability to "grab it" for lack of a better term. That's why people in the city (who are typically closer to multiple towers) don't tend to have the problems us country folks do...
Anyway, that's just been my experience. I'd be interested in what more people have to say?