What is the name of the door next to the sentry box?

Now there are security guards everywhere in enterprises, institutions and properties. The door of the security room of the house where the security guard is on duty is called the booth door, and the door is the studio where the security guard is on duty. Generally, there are two security guards on duty in each post. One person in charge registers people coming and going, and the other one takes a rest in the door after strengthening the patrol around, which can replace the other security guard.