Do I have the right to talk to the kids over phone

[peaceSJ]

Thank you all for your inputs. It is very useful.
I found out that most time my H didn't want to pick up my phone beause either the other woman was around or he was busy texting with her. I have scheduled an appointment with our lawyer to consult this issue.
Now I am facing another issue about parenting time. Before seperation my H always was suddendly gone for couple days or even two weeks to stay with the other woman. And I was the person taking care of the kids all the time. As part of mutual agreement, we agreed 6 days with dad and 8 days with mom parenting schedule, so the kids stay with each of us every other week. As a result, i agree to move out to another smaller house. We submitted this agreement to our mediator and let him to draft a offical agreement for us to sign. But right after I moved out,, my H broke his promise and asked for seven days parenting time. He threaten if I disagree, he will go to court.
I feel I was trapped and cheated by him again. If go to court, will he be granted seven days parenting time? Or the court will consider our current 6 days with dad schedule?

Thank youx