Converting one type of mailbox to another type is possible in Exchange environment, and you can complete the task with the help of Set-Mailbox command in the Exchange Management Shell. Here are the types of mailbox(es) which you can convert in Exchange –
It is the basic type of mailbox that is assigned to Exchange users. So, it is called a user mailbox. It helps users in sending or receiving the message, creating/managing contacts, scheduling meetings, etc. Also, user mailboxes can choose to receive voicemails in it.
An Exchange administrator can create a shared mailbox to provide access to multiple users. Shared mailboxes are not directly connected with any account, but after creating a shared mailbox, administrators can give permissions to multiple users to use the shared mailbox.
A Room mailbox is specifically created to utilize as a resource of the organization. A room is created for meeting locations like conference rooms, meetings rooms, training rooms, and auditoriums.
Equipment mailbox is a resource mailbox which can be associated to portable devices like microphones, projectors, laptops, cars, etc.