I have a landline and a mobile phone. I rarely use my landline, only parents, and official people have the number.
So at 6pm every single night I take my kids upstairs for a bath. I have no landline upstairs which suits me fine. I like to bath my kids read stories and have hugs before lights out at around 7pm. If my landline or mobile rings at that time I don't answer it. Unless it rings repeatedly and then I know it's important. My dh usually gets home between 6.30 and 7.30, if he gets in before lights out he comes upstairs for stories and hugs etc..
My Mum and my Inlaws both know not to phone between 6 and 7pm; I've told my Dad about a gazillion times not to phone me between 6 and 7pm.
So why the fuck does he phone my landline at least twice, a couple of times a week. Then send me a text saying "Cannot+get+answer+from+you+call+me+sometime"