Or the house could be like ours: in the middle of a triangle of rather distant (and topographically-shaded) base stations, such that the signal is poor even outside. Then there is lots of lovely Aluminium foil in the wall insulation with the overall result that there are rooms which never get a signal, while all the others are no better than 'iffy'.
We've tried most of the providers and they are all much-of-a-muchness.
Mobile is simply not a back-up option for us.
That is why we have a conventional wired phone permanently plugged in.
Biting the hand that feeds IT
