You can track time spent on the phone with your children, and in general we recommend that you do so.
To mark a Tracker entry as telephone time, select Phone from the Visit Type drop-down list in the Tracker's editing screen.
You may also want to set the telephone icon to display. You can do this by clicking the checkbox next to the telephone icon and placing an 'X' in it. When you save the record, the telephone icon will appear in the Tracker's month view for that day.