He's trying to put the responsibility in the wrong place. Well, there's a shocker!
If he wants to talk to the kids, he is going to have to call them. It's got nothing to do with you, or even him. It's most kids! The best you can do is come up with a time that they will regularly be available, and let him know. If he call, and they don't want to talk, well, there's not much you can do, is there?
