This summer is the second summer visitation my ex has had with her son. Last summer I had every other weekend this summer is different as I have more extended periods away from my son . Whenever I call to talk with him he sounds monotone and is usually distracted with a video game, something on TV or people talking. To have a good chat with him, I decided to call and ask his mother for the sitters number . She was at work and reluctantly provided the number where I can reach him. He sounded so good he sounded like my son. The dilemma is that she expressed that she would like me to primarily call her phone in the evenings. I don't want to do that. I like talking to him when he is with the sitter because it's like talking to my son instead of some robot. Any tips on how to handle this would be greatly appreciated because I want to call him again but I don't want to ruffle her feathers because there's always hell to pay. By the way I have physical custody and we have joint custody.