The crew used Skype so that the directors could direct the actors as usual and the actors could practice their copies of the screenplay in front of the directors. However, the actors themselves had to send their takes to the creators to see if they would make the final cut of each episode.
Because the cast and crew couldn't leave their house and film on a set as usual, each set of actors had to use an iPhone, a microphone and a tripod to shoot their respective scenes. They also used all the real objects of their respective houses as props for the series, especially those demanded by the screenplay.