The plan is to start them early next week. (I can't promise whether "early" means Monday or Tuesday). But the calls will continue through the week, with the goal of reaching all admits by January 14 when decisions will be accessible online for all applicants.
As I tell anxious applicants every year, the calls are made in no particular order and we don't have set times when we make the calls. Just try to be patient. (I know that's not easy!) We'll try to reach you as soon as we can.
From Soojins blog... You maybe right 300 does sound accurate considering 70% yield and class size of 500. So if they do 100 per day it seems right no? I have a feeling they will release the website decisions a few hours to one day early. Calls will be made Tues-Thurs maybe till afternoon? Just a guess but im going stir crazy.