moto e4, android 7.1
background: we live in a mobile dead zone. on a good day, in the right part of the house, we might get “one bar” for a cell signal. So, we rely entirely on wifi calling while at home. When at home, I regularly set my phone to airplane mode. My wife just leaves wifi and cell on all the time…mostly because she’s afraid that she’ll forget to turn off airplane mode when she leaves the house.
I am in the middle of debugging a issue where her phone does not ring, and calls go directly to voicemail. I don’t seem to have that problem, so I started looking for differences. It does not seem to be related to the so-called “doze” issue, as the problem happens when the phone is plugged in.
I then tried putting her phone in airplane mode, and that seemed to make a difference. My test calls (from my phone to hers) caused her phone to ring when in airplane mode, vs. straight to voicemail when she was not in airplane mode.
Anyway, I am stopping to check with the experts here on a theory I have…
Is it possible, given that we have a weak cell signal, that the phone is confused when a call comes in? In other words, could the phone be trying to take the call via cell, but ends up going to voicemail, because the signal is not strong enough? Ideally, I was hoping that the phone would use the stronger path, but maybe that’s asking too much.
I currently have her phone on airplane mode, and will monitor over the next few days. I welcome your thoughts and insight. Thanks!