@Benny_LamIt depends how you are going to use it, see below:
What license do you need?
Before you create a Microsoft 365 resource account, check to see what kind of license it needs:
Teams meetings If you want to associate the resource account with a shared device, such as a Microsoft Teams Room or Teams display with hot-desking, and use it to join a Teams meeting so attendees can use it to present video and audio through it, you need a Meeting Room License. For more information about licensing for meeting rooms, see Teams Meeting Room Licensing.
PSTN calls If you want the resource to make or receive calls to or from an external phone number (called a Public Switched Telephone Network or PSTN call), you need a Microsoft 365 Phone System or Microsoft 365 Business Voice license. You only need to complete Step 1 in the following overview. Then, see Microsoft Teams add-on licenses for more information.
If you're only using a resource account to book a resource—that is, invite the resource to your meeting and have it automatically accept or decline the invitation—you don't need to assign a license to the resource account and you only need to complete Step 1 in the following overview.
So if it is only to use for booking a meeting room you will not need any license :)
Let me know if this is the info you where looking for.
Kind regards,
Mitchell Bakker
