Ya 🙂 but the phone is also the perfect time for Purim shtick, people started playing music, blowing on the phone (causing static), teachers were trying to get new numbers cuz they thought the line was bad. Imagine at least 50 kids on one phone at once.
The bright side is that unless a teacher takes attendance during the class or at the end you can join in the beginning, like just for attendance and then hang up and no cuts 🙂