How often do you talk to them?
I talk to mine once a week, but would prefer talking to them every fortnight. I don't really like talking on the phone and there's a large time difference.
My parents were nagging me this afternoon to call them more often. Apparantly their friends' children call their parents once a day.
I feel once a day is unreasonable, especially considering that they like to talk for at least an hour and there's the time difference which makes finding a good time to call difficult. I have a life of my own!
I'd like to know if I'm being unreasonable myself though.