The US is a big place. If it really is a cottage, you might find video calls aren't an option, at least from there. (for example, the Upper Peninsula of Michigan is full of places with spotting cell coverage, and limited broadband connection options, even if you wanted to) You can confirm mobile coverage at a carrier's site. I would also look for the nearest cafe / library / sympathetic hotel or B&B and see about using them as a base.
