Managing a shared Teams account

Question

At our workplace, we offer up to x3 loanable dell laptops which all have Teams installed to be used for conferences/meetings.

Users are welcome to either log into their own account or to use our shared 'Rooms' account when on Teams.

I'd like to know what are the capabilities of the account when more than one user wants to use the 'Rooms' account. Can individual calls run at the same time through this same account? Is there an added license we need for this to be possible?

What can each person do while active? How do notifications work? Is bandwidth also a factor?

Would love to get any advice on the ins and outs of this matter.