We have always phoned the kids when they weren't with us. Less now that they're 20 and 17. I always thought it to be a wonderful thing that both parents show their love and interest even when the children aren't with them. If there's no need for lines to be drawn in the sand then why make them? If wife is checking on you or bad mouthing you etc then there's an issue but otherwise I say let it go...and you start calling too! D may feel guilty talking to Mom 'cuz you don't call when she's at Mom's...but only she would know for sure. This co-parenting stuff sure isn't easy, is it SP!